Question

Find the vertex of the quadratic equation: y = 2x2 + 12x − 4.

(−3, 50)

(3, 50)

(−3, −22)

(−3, −58)

Answer 1

Use the formula
x = -b/2a = -12/ 4 = -3
Now we can put this values of x to find y

Answer 2

-12 i knew it was -3, somethin

Answer 3

12 isnt in any of the answers. sorry OS cut me off :/

Answer 4

So you have x = -3 and in the equation y = 2x2 + 12x − 4. Put x = 3 to get y
CAn you do that?

Answer 5

x = 3 is still 3

Answer 6

(−3, −22)

Answer 7

yes its correct, you did that on you own..hahaha