Question

solve the inequality and graph the solution. 10 < -5f to draw a ray, plot an endpoint and select an arrow. select an endpoint to change it from closed to open. select the middle of the ray to delete it.

Explanation:

Step1: Divide both sides by -5

When dividing an inequality by a negative number, the inequality sign flips. So, $\frac{10}{-5}>\frac{- 5f}{-5}$.
$$-2 > f$$
which can also be written as $f < - 2$.

Answer:

The solution of the inequality is $f < - 2$. On the number - line, you would plot an open - circle at $-2$ (since the inequality is strict, $f$ cannot equal $-2$) and draw a ray to the left.