# How do you calculate f(-1.60) if f is the function given by the formula f(x) = -1.4x + -9.1?

Sep 29, 2015

$f \left(- 1.60\right) = - 6.86$

#### Explanation:

To solve this, simply substitute $- 1.60$ into $x$.

f(x)=−1.4x−9.1
f(-1.60)=−1.4(-1.60)−9.1
f(-1.60)=−1.4(-1.60)−9.1
f(-1.60)=2.24−9.1
color(red)(f(-1.60)=-6.86