F(x)=x^2-2x-8 what is axis of symmetry , vertex and roots?
1 answer:
X^2 - 2x - 8
2 numbers that multiplied give -8
2 numbers that added give -2
2 x -4 = -8
2 + -4 = -2
(x + 2) (x -4 )
roots equal = -2, 4
x^2 - 2x -8
a. b. c because b is -2 in the equation you don't plug b as a negative
in the axis of symmetry
axis of symmetry = -b divide by 2a
2 divide by 2(1) =1
Vertex= (1, -9)
You might be interested in
y = 20 + 2.5x
have to write more or I cant post this
Answer:
65 teddy bears
Step-by-step explanation:
65:39
65+39=104
Answer:
https://preview.redd.it/t4p9fgd30ag61.gif?format=mp4&s=56295791fda9b2006756326ff4863b84a5c30271
Step-by-step explanation:
Answer:
option a 5......
...
I hope it's correct
The second graph or the letter B