20.11.2020

Select the correct answer.
What are the x-intercepts of this quadratic function?
g(x) = -2(x − 4)(x + 1)
A.
(-4,0) and (1,0)
B.
(-4,0) and (-1,0)
C.
(4,0) and (1,0)
D.
(4,0) and (-1,0)

. 5

Faq

StudenGPT
Step-by-step answer
P Answered by Studen AI
To find the x-intercepts of a quadratic function, we need to determine the values of x when the function g(x) is equal to zero.

Given the quadratic function g(x) = -2(x - 4)(x + 1), we can set g(x) equal to zero and solve for x.

-2(x - 4)(x + 1) = 0

To solve this equation, we can apply the zero product property, which states that if a product of factors is equal to zero, then at least one of the factors must be zero.

So, we set each factor equal to zero and solve for x:

x - 4 = 0
x + 1 = 0

For the first equation, by adding 4 to both sides, we get:
x = 4

For the second equation, by subtracting 1 from both sides, we get:
x = -1

Therefore, the x-intercepts of the quadratic function g(x) = -2(x - 4)(x + 1) are x = 4 and x = -1.

Now, let's match the answer choices with our results:

A. (4,0) and (1,0) - This answer choice does not match our results.

B. (-4,0) and (1,0) - This answer choice does not match our results.

C. (4,0) and (-1,0) - This answer choice matches our results.

D. (-4,0) and (-1,0) - This answer choice does not match our results.

Therefore, the correct answer is C. The x-intercepts of the quadratic function g(x) = -2(x - 4)(x + 1) are (4,0) and (-1,0).
Mathematics
Step-by-step answer
P Answered by PhD

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

Mathematics
Step-by-step answer
P Answered by PhD
Answer: 440 grams for 1.54 is the better value
Explanation:
Take the price and divide by the number of grams
1.54 / 440 =0.0035 per gram
1.26 / 340 =0.003705882 per gram
0.0035 per gram < 0.003705882 per gram
Mathematics
Step-by-step answer
P Answered by PhD

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

Mathematics
Step-by-step answer
P Answered by PhD

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

Mathematics
Step-by-step answer
P Answered by PhD

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales

Mathematics
Step-by-step answer
P Answered by PhD

The solution is given in the image below

The solution is given in the image below
Mathematics
Step-by-step answer
P Answered by PhD

Speed=Distance/time

Here,

distance=15m

time=1sec

speed=15/1=15m/sec

Distance=Speed*time

time=15min=15*60sec=900sec

Distance travelled in 15 min=15*900=13,500m

=13500/1000 km=13.5Km

Mathematics
Step-by-step answer
P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics
Step-by-step answer
P Answered by PhD

tip=18% of 75.45

     =18/100 * 75.45 = $13.581

Tip = $13.581

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