Mathematics: What is true about the graph of the line y = - 2x + 9 ?

What is true about the graph of the line y =, №13543334, 23.01.2023 07:12

Mathematics

Lan graphs these equations and finds that the lines intersect at a single point, (-2,-0.5) equation a: 4y - 3x = 4 equation b: -2x - 8y = 8 which statement is true about the values x = -2 and y=-0.5?

Step-by-step answer

P Answered by Specialist

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Step-by-step explanation:

correct answer would be: B = –2x – 8y = 8

There

Mathematics

Lan graphs these equations and finds that the lines intersect at a single point, (-2,-0.5) equation a: 4y - 3x = 4 equation b: -2x - 8y = 8 which statement is true about the values x = -2 and y=-0.5?

Step-by-step answer

P Answered by Specialist

Mark me as brain list

Step-by-step explanation:

correct answer would be: B = –2x – 8y = 8

There

Mathematics

Select all statements that are true about the linear equation: y = - 2x + 4 **hint : (you may have to select more than one answer.) a. the graph of the equation is the set of all points on the coordinate plane . b. t he point (1, 2) lies on the graph of the equation. c. the graph of the equation is the set of points that are solutions to the equ ation. d. the point (0, 2) lies on the graph of the equatio

Step-by-step answer

P Answered by PhD

7

we have

y=-2x+4 ---------> equation

using a graph tool

see the attached figure

Statements

A The graph of the equation is the set of all points on the coordinate plane

This statement is False

Because

The graph of the equation is the set of points that are solutions to the equation

B. The point (1, 2) lies on the graph of the equation

This statement is True

see the attached figure

Verify

For x=1 find the value of y in the equation and compare with the y-coordinate of the point

so

y=-2*1+4=2

2=2 --------> the point lies on the graph

C. The graph of the equation is the set of points that are solutions to the equation

This statement is true

All ordered pairs (x,y) that satisfy y=-2x+4 are solutions of the equation

D.The point (0, 2) lies on the graph of the equation

This statement is false

see the attached figure

Verify

For x=0 find the value of y in the equation and compare with the y-coordinate of the point

so

y=-2*0+4=4

$4\neq2$ --------> the point not lies on the graph

Mathematics

Select all statements that are true about the linear equation: y = - 2x + 4 **hint : (you may have to select more than one answer.) a. the graph of the equation is the set of all points on the coordinate plane . b. t he point (1, 2) lies on the graph of the equation. c. the graph of the equation is the set of points that are solutions to the equ ation. d. the point (0, 2) lies on the graph of the equatio

Step-by-step answer

P Answered by PhD

7

we have

y=-2x+4 ---------> equation

using a graph tool

see the attached figure

Statements

A The graph of the equation is the set of all points on the coordinate plane

This statement is False

Because

The graph of the equation is the set of points that are solutions to the equation

B. The point (1, 2) lies on the graph of the equation

This statement is True

see the attached figure

Verify

For x=1 find the value of y in the equation and compare with the y-coordinate of the point

so

y=-2*1+4=2

2=2 --------> the point lies on the graph

C. The graph of the equation is the set of points that are solutions to the equation

This statement is true

All ordered pairs (x,y) that satisfy y=-2x+4 are solutions of the equation

D.The point (0, 2) lies on the graph of the equation

This statement is false

see the attached figure

Verify

For x=0 find the value of y in the equation and compare with the y-coordinate of the point

so

y=-2*0+4=4

$4\neq2$ --------> the point not lies on the graph

Mathematics

Helllppp! y = -1/2x^2 + 2 y = -2x^2 + 3 y = -3/4x^2 y = -4/5x^2 - 5 for the quadratic equations shown here, which statement is true? a) the graphs open upward. b) the graphs open downward. c) the graphs are symmetric about the x-axis. d) the graphs are listed from narrowest to widest.

Step-by-step answer

P Answered by PhD

10

The correct answer is this one: "B) The graphs open downward. " Negative quadratic functions will give you a downward graph.

The equations
y = -1/2x^2 + 2
y = -2x^2 + 3
y = -3/4x^2
y = -4/5x^2 - 5

are all negative. So they are facing downward.

Mathematics

1. two lines, a and b, are represented by the following equations: line a: 4x + 4y = 16 line b: x + y = 4 which statement is true about the solution to the set of equations? (4 points) it is (1, 2). there are infinitely many solutions. it is (1, 5). there is no solution. 2. consider the following pair of equations: x + y = –2 y = 2x + 10 if the two equations are graphed, at what point do the lines representing the two equations intersect? (4 points) (–4, 2) (4, 2) (–2, 4) (2, 4) 3. consider the following system of equations: y = 5x + 6 y = –x –

Step-by-step answer

P Answered by Specialist

28

1. Multiply the second line by 4: 4x+4y=16. They are the same line so there are infinitely many solutions.

2. Substitute for y.
x+(2x+10)=-2
3x+10=-2
3x=-12
x=-4

Plug x in
-4+y=-2
y=2

Final (-4,2)

3. The answer is the first one because the solution is always where two lines intersect. The crossing of the x axis, y axis, and origin are irrelevant.

4. 2x+4=3x+1. This is because both equations define the value of y and therefore must be equivalent.

5. Infinitely many solutions. If you multiply the second equation by -3, you can tell it's coinciding or the same line.

Mathematics

Helllppp! y = -1/2x^2 + 2 y = -2x^2 + 3 y = -3/4x^2 y = -4/5x^2 - 5 for the quadratic equations shown here, which statement is true? a) the graphs open upward. b) the graphs open downward. c) the graphs are symmetric about the x-axis. d) the graphs are listed from narrowest to widest.

Step-by-step answer

P Answered by PhD

10

The correct answer is this one: "B) The graphs open downward. " Negative quadratic functions will give you a downward graph.

The equations
y = -1/2x^2 + 2
y = -2x^2 + 3
y = -3/4x^2
y = -4/5x^2 - 5

are all negative. So they are facing downward.

Mathematics

1. two lines, a and b, are represented by the following equations: line a: 4x + 4y = 16 line b: x + y = 4 which statement is true about the solution to the set of equations? (4 points) it is (1, 2). there are infinitely many solutions. it is (1, 5). there is no solution. 2. consider the following pair of equations: x + y = –2 y = 2x + 10 if the two equations are graphed, at what point do the lines representing the two equations intersect? (4 points) (–4, 2) (4, 2) (–2, 4) (2, 4) 3. consider the following system of equations: y = 5x + 6 y = –x –

Step-by-step answer

P Answered by Specialist

28

1. Multiply the second line by 4: 4x+4y=16. They are the same line so there are infinitely many solutions.

2. Substitute for y.
x+(2x+10)=-2
3x+10=-2
3x=-12
x=-4

Plug x in
-4+y=-2
y=2

Final (-4,2)

3. The answer is the first one because the solution is always where two lines intersect. The crossing of the x axis, y axis, and origin are irrelevant.

4. 2x+4=3x+1. This is because both equations define the value of y and therefore must be equivalent.

5. Infinitely many solutions. If you multiply the second equation by -3, you can tell it's coinciding or the same line.

Mathematics

Which statements are true about the ordered pair (-4, 0) and the system of equations? 2x + y = -8 x - y = -4 Select each correct answer The ordered pair (-4, 0) is a solution to the first equation because it makes the first equation true The ordered pair (-4, 0) is a solution to the second eguation because it makes the second equation true. The ordered pair (-4, 0) is not a solution to the system because it makes at least one of the equations false The ordered pair (-4, 0) is a solution to the system because it makes both equations true

Step-by-step answer

P Answered by Master

4

The ordered pair (-4, 0) is a solution to the system because it makes both equations true. -4 is your x and 0 is your y for both equations.

Mathematics

Y= - 1 2 x2 + 2 y = - 3 4 x2 y = - 4 5 x2 - 5 y = -2x2 + 3 for the quadratic equations shown here, which statement is true? a) the graphs open upward. b) the graphs are symmetric about the line x = 1. c) the graphs are listed from narrowest to widest. d) the graphs are symmetric about the y-axis.

Step-by-step answer

P Answered by PhD

6

D) The graphs are symmetric about the y-axis.