Chapter 3: Equations And Inequalities

Question 1

At what point does the greater sign change to the less than sign when solving an inequality?

Answer 1

When the minus sign changes from left to right hand side or vice versa due to a division.

Question 2

How do you determine what part to shade on an graph that has inequalities?

Answer 2

Sub in (0,0) into equation of line and see if it suits the inequality.
If line goes through (0,0), choose a different number.
If it does suit the inequality, shade the side where the coordinate chosen is. If not, shade in other side.