6.5 Linear Inequalities
Remember when...
We graphed inequalities like...
x<3
Is the ordered pair a solution of the inequality?
x + 2y < -3
(-6, 1)
Graph: y > 2x + 8
Graph
y<
3
4
x-5
Graph x - 5y < 15
Graph 7x - 7y > -21
How about those word problems?
You have $150 to spend on school clothes.
It costs $20 for a pair of pants and $15 for a shirt.
Let x represent the number of pants and y represent the number of
shirts you can buy.
Write and graph an inequality that describes the different number
of pants and shirts you can buy.
10
number of shirts
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
number of pants
8
9
10