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

Solution:

It is given that

f(x) = 4x² + 8x + 7

The standard form of a quadratic equation is

f(x) = ax² + bx + c

Comparing both we know that

a = 4, b = 8, c = 7

The axis formula is

x = -b/2a

Substituting the values

x = -8/ 2 (4)

By further calculation

x = -8/ 8

x = -1

Therefore, the axis of the graph of the function is x = -1.

---

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

Summary:

The axis of the graph of the function f(x) = 4x² + 8x + 7 is x = -1.