Question

or
Solve the inequality and graph the solution.
10+5p≤
–
10
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.

Answer 1

Solve: 10 + 5p ≤ −10

Step 1: Subtract 10 from both sides:
5p ≤ −20

Step 2: Divide both sides by 5:
p ≤ −4

Solution set: p ≤ −4, or in interval notation: (−∞, −4].

Graph: Draw a number line, place a closed (filled) dot at −4, and draw a ray extending left from −4 (arrow pointing left).

(If using the drawing tool: plot the endpoint at −4 and make sure it is closed since the inequality is ≤, then select the left arrow for the ray.)