Inequalities Review
Homework
Graph the inequalities.
Class:_______ Calc#:_______
1. y < 3x - 4
b = ________
m = _______
line: dashed/solid
shade: above/below
Name a point in the
solution ________
2. y > ⅔x - 1
b = ________
m = _______
line: dashed/solid
shade: above/below
Name a point in the
solution ________
3. y > - 2x + 3
b = ________
m = _______
line: dashed/solid
shade: above/below
Name a point in the
solution ________
4. y > x + 4
b = ________
m = _______
line: dashed/solid
shade: above/below
Name a point in the
solution ________
5. y < ½x - 2
b = ________
m = _______
line: dashed/solid
shade: above/below
Name a point in the
solution ________
6. y < - x - 4
b = ________
m = _______
line: dashed/solid
shade: above/below
Name a point in the
solution ________
Solve for y. (If you multiply or divide by a negative number, flip the inequality sign)
7. 3x – 2y < -16
8. 9x – 3y > 6
9. 4x – y > 1
Inequalities Review
Homework
Class:_______ Calc#:_______
10. Solve 8x – 2y = 16 for y
11. Find the slope of the line 16x-8y=24
A. y = 4x – 8
A. -3
B. y = -4x – 8
B. -2
C. y = 4x + 8
C. 2
D. y = -4x + 8
D. 3
12. Find the slope of y = 5 + 2x
13. Which as the same slops as y = x?
A. 5
A. y = 3x
B. -5
B. y = ½x + ½
C. 2
C. x + y = 1
D. -2
D. x – y = 1
14. A line contains the points (7, 11)
15. Which line has the same
and (-2, -7). Find its slope.
y-intercept as x + 2y = 12?
A. 2
A. x – 2y = 12
B. 4/9
B. y = x + 6
C. 4/5
C. y = -½x + 12
D. 18/5
D. y = -½x – 12
16. Which ordered pair is a
17. x + 3y = 9
solution to y < x – 5?
5x – 3y = 0
A. (15, -1)
A.
B. (4, 8)
B.
C. (8, -5)
C.
D. (-1, 3)
D.
18. Which point is a solution for the inequality 3x – 2y < 5?
A. (2, 3)
B. (3, 2)
C. (5, 2)
D. (8, 5)
Find x only.
Use elimination