Question

The graph of which quadratic equation is shown below?

a u-shaped graph on a coordinate plane that is opening up and has a vertex of (−3, −1)

a. y = −x2 + 6x + 8
b. y = −x2 − 6x + 8
c. y = x2 + 6x + 8
d. y = x2 − 6x + 8

Answer 1

skip the first two because this one opens up and those two would not

Answer 2

you have the zeros are \(-4,-2\) from the picture
multiply
\[(x+4)(x+2)\] to get your answer

Answer 3

ok

Answer 4

so is it x^2+6x+8

Answer 5

yes

Answer 6

Thanks!!!

Answer 7

Then you can use https://www.desmos.com/calculator to check your answer! :)

Answer 8

yw