Answer
a. 8, b. -10, c. 0
Work Step by Step
We are given the function $f(x)=x^{2}-7x$. In order to find the specified values, we can plug the values into the function and solve.
a. $f(-1)=(-1)^{2}-7(-1)=(-1\times-1)-7\times-1=(1)-(-7)=1+7=8$
b. $f(2)=(2)^{2}-7(2)=(2\times2)-7\times2=(4)-14=4-14=-10$
c. $f(0)=(0)^{2}-7(0)=(0\times0)-7\times0=(0)-0=0-0=0$