### Home > PC3 > Chapter 7 > Lesson 7.2.4 > Problem7-114

7-114.

Let $f(x)=x^2+2x-1$.

1. Evaluate and simplify $\frac { f ( 5 + h ) - f ( 5 ) } { ( 5 + h ) - 5 }$.

$\frac{(5 + h)^2 + 2(5 + h) - 1 - (5^2 + 2(5) - 1)}{h}$

2. Explain what your answer represents on the graph of $y=f(x)$.

This is a slope expression.
{"found_math": true, "script_math_tex": 4, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 0, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 0, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0}