X = -b/2a
x = -8/4
x = -2
Plug -2 in for x and solve for y
y = 2(-2)^2 + 8(-2) -3
y = 8 -16 -3
y = -11
Vertex (-2, -11)
Step-by-step explanation:
add 4 for the linear column
multiply by 3 in exponential column
It is C (the one on the bottom left) because none of the X-values are used twice. On all the others their X-values are used more then once.
Answer: is 111 r4
Step-by-step explanation: smart b)