The equation 4x^2+8x+15=0 is being rewritten in vertex form

Vertex form is y = (2x+2)^2 + 7  

Step-by-step explanation:

The vertex form is

y = (x-h)^2+k

Where (h,k) is the vertex.

Let

y = 4x^2 + 8x +15

Add -15 on both sides

y-15 = 4x^2+8x+15 -15

y-15 = 4x^2+8x

Making whole square formula on Right hand side (a+b)^2

(2x)^2 + 2(2x)(2)+(2)^2 = (2x+2)^2

Adding (2)^2 on both sides of the equation

y-15+(2)^2=4x^2+8x+(2)^2

y-15+4=(2x+2)^2

y-7 = (2x+2)^2

y = (2x+2)^2 + 7

So, Vertex form is y = (2x+2)^2 + 7  

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

what is the model?

step-by-step explanation: