Question

Given the function 7x – 10 x < 0 f(x) 73 – 20 > 0 Calculate the following values: f( - 1) = f(0) f(2)=

Answer 1

We have a piecewise function

if the value of x is less than zero the function will be 7x-10

if the value of x is equal to or greater than zero the function will be 7x-20

for the case x=-1, we will use 7x-10

`f(-1)=7(-1)-10=-17`

for case x=0, we will use 7x-20

`f(0)=7(0)-20=-20`

for case x=2, we will use 7x-20

`f(2)=7(2)-20=-6`