question\nfind the slope of the secant line between x = 2 and x = 5 on the graph of the function…

question\nfind the slope of the secant line between x = 2 and x = 5 on the graph of the function f(x)=x^{2}-2x + 5.\nprovide your answer below:\nm_{sec}=□
Answer
Answer:
5
Explanation:
Step1: Find f(2)
$f(2)=2^{2}-2\times2 + 5=4 - 4+5 = 5$
Step2: Find f(5)
$f(5)=5^{2}-2\times5 + 5=25-10 + 5=20$
Step3: Use slope formula
The slope formula for the secant line between $(x_1,f(x_1))$ and $(x_2,f(x_2))$ is $m=\frac{f(x_2)-f(x_1)}{x_2 - x_1}$. Here $x_1 = 2,x_2=5,f(x_1)=5,f(x_2)=20$. So $m=\frac{20 - 5}{5 - 2}=\frac{15}{3}=5$