Find the average rate

Answer:
5
Step-by-step explanation:
To find the average rate of change of the function between two points [tex]x_1, x_2[/tex], we can use the following formula:
[tex]m=\frac{f(x_2)-f(x_1)}{x_2-x_1}[/tex]
The function in this problem is
[tex]f(x)=x^2-2x+9[/tex]
At [tex]x_1 = 1[/tex], we have
[tex]f(x_1)=f(1)=1^2-2(1)+9=8[/tex]
At [tex]x_2 = 6[/tex], we have
[tex]f(x_2) = f(6) = 6^2-2(6)+9=33[/tex]
So now we can apply the first formulat to find the average rate of change of the function between the two points:
[tex]m=\frac{33-8}{6-1}=\frac{25}{5}=5[/tex]