Question

If anybody now this pls help my homework due TOMORROW

Answer 1

Part A: D.
`y = (x + 1)(x+3)\\`

Part B: C.
`3x(x-3) = 0\\`

Explanation:

For part A) we just have to plug in 0 for x and solve for y until we find the equation that says 3 is the value for y when x is 0. For purposes of speeding up the process the correct answer is D. I will show how to check for it now.

The equation:
`y = (x + 1)(x+3)`

Now plug in 0 for x.

`y = (0 + 1)(0+3)\\`

Now solve.

y = (1)(3)

y = 3

This proves that this is the correct answer.

For part B) we just have to plug in the give values for x separately and check for each value of x that it equals 0. For the purpose of speeding up the process the correct answer is C. I will show how to check for it now.

The equation:
`3x(x-3) = 0`

Now plug in x for 0 and solve:

`3* 0 (0-3) = 0\\`

`0(-3) = 0\\`

`0 =0\\`

This equation is true, now we check for the other value of x, 3.

`3*3(3-3) = 0\\`

`9(0) = 0\\`

`0 =0\\`

This is also true so that means this is the correct answer.