Question

x^2-7x-8 x^2-7x-8 @Mathematics

Answer 1

axis of symmetry

Answer 2

x = -b/2a

x = -(-7)/2

x = 7/2 or 3.5

Answer 3

that isnt an answer choice r u sure?

Answer 4

What are the answer choices?

Answer 5

I'm pretty sure...

Answer 6

-8,1:y=-3.5, they all have 8 in them instead of 7

Answer 7

Strange answer choices. There's only one axis of symmetry and it's at x = 7/2 or 3.5

Answer 8

identify the vertex and the axis of symmetry for the graph of y=0.4(x+3)^2-5

Answer 9

Vertex: (-3,5)
Axis Of Symmetry x = -3

Answer 10

use factoring to find the zeroes of each equation? y=x^2-x-72

Answer 11

Set y = 0, then solve for x:
x^2-x-72 = 0
x^2-9x+8x-72 = 0
x(x-9)+8(x-9) = 0
(x-9)(x+8) = 0

x = -8,9

Answer 12

find the zero, y=x^2+18x+81

Answer 13

(x+9)^2 = 0
x + 9 = 0
x = -9

Answer 14

find the zero, y=x^2+4x-21,and the equation of the axis of symmertry?

Answer 15

x^2 + 7x-3x-21 = 0
x(x+7)-3(x+7) = 0
(x+7)(x-3) = 0
x = -7,3

Axis of symmetry: x = 3-(-7)/2 = 10/2 = 5

Answer 16

-5

Answer 17

which is the vertex of the graph? of y=x^2+3x-4

Answer 18

wats the answer

Answer 19

Let me verify that

Answer 20

ok

Answer 21

(-1.5, -6.25)

Answer 22

find the zeroes, y=x^2+2x-4