Question

Find the axis of the graph of the function..f(x) = 4x2 + 8x + 7

Answer 1

f ( x ) = 4 x² + 8 x + 7
a = 4, b = 8
The axis formula is:
x = - b / 2 a
x = - 8 / (2*4) = - 8 / 8 = -1
Answer:
The axis of the graph of the function is x = - 1.