Functions and Function Notation · Exercise 39

Evaluate $f$ at the indicated values $f\left(-3\right),f\left(2\right),f\left(-a\right),-f\left(a\right),f\left(a+h\right).$

Consider the relationship $3r+2t=18.$

ⓐ Write the relationship as a function $r=f\left(t\right).$
ⓑ Evaluate $f\left(-3\right).$
ⓒ Solve $f\left(t\right)=2.$

OpenStax, Precalculus 2e · §1.1 Functions and Function Notation · Exercise 39