08.11.2022

A line that passes through the point (x, y), with a y-intercept of b and a slope of m, can be represented by the equation y = mx + b.
A line is drawn on the coordinate plane that passes through the point (10,1) and has a slope of -0.5. The y-intercept of the line is?

. 5

Faq

Mathematics
Step-by-step answer
P Answered by PhD

6

Step-by-step explanation:

A line that passes through the point (x,y), with a y-intercept of b and a slope of m, can be represented by the equation y = mx + b.

If a line has the slope of -0.5, then m=-0.5 and the equation of the line is

y=-0.5x+b

This line passes throughthe point (10,1), then the coordinates of this point satisfy the equation of the line:

1=-0.5\cdot 10+b\\ \\1=-5+b\\ \\b=1+5\\ \\b=6

and the equation of the line is

y=-0.5x+6

Since b=6, the y-intercept of the line is 6.

StudenGPT
Step-by-step answer
P Answered by Studen AI
To find the y-intercept of the given line, we can use the equation for a line: y = mx + b, where m represents the slope and b represents the y-intercept.

Given that the line passes through the point (10,1) and has a slope of -0.5, we can substitute these values into the equation:

1 = -0.5(10) + b

Now, let's solve for b by simplifying the equation step by step:

1 = -5 + b (multiplying -0.5 by 10 results in -5)
1 + 5 = b (adding 5 to both sides of the equation)
6 = b

Therefore, the y-intercept of the line is 6.

Let's verify our answer by substituting the values of b and the slope (-0.5) into the equation for a line:

y = -0.5x + 6

Now, let's substitute the given point (10,1) into the equation:

1 = -0.5(10) + 6
1 = -5 + 6
1 = 1

The equation holds true, which confirms that our answer for the y-intercept is correct.
Mathematics
Step-by-step answer
P Answered by PhD

y=2x+15

where y=Value of coin

x=Age in years

Value of coin after 19 years=2*19+15

=$53

Therefore, Value after 19 years=$53

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