Question

solve the inequality and graph the solution. f - 7 < 2 plot the endpoints. select an endpoint to change it from closed to open. select the middle of the segment, ray, or line to delete it.

Explanation:

Step1: Isolate the variable f

Add 7 to both sides of the inequality $f - 7<2$. So, $f-7 + 7<2 + 7$.

Step2: Simplify the inequality

$f<9$.

Answer:

The solution of the inequality is $f<9$. On the number - line, we use an open - circle at 9 (because 9 is not included in the solution set) and draw a ray to the left of 9.