BASIC ALGEBRA EXAM 4 D* NAME ___________________
SHOW ALL WORK
AS NECESSARY ON THIS TEST OR ON SEPARATE PAPER.
CALCULATORS ARE
EXPECTED ON THIS TEST.
In 1 - 8, graph
the equations and inequalities. (Show
work for partial credit!)
1. y =
3x – 2
2.
y = – 2x
3.
4. 2x + 5y = 10
5. x –
3y = – 6 6.
y = – 4
7.
8. 2x – y
< – 6
In 9 - 14, find the slope and the
y-intercept.
9. y = – 5/2 x – 3
10. y
= x
11. y =
– 3x + 6
slope
= _____
slope = _____
slope = _____
Y-int = _____
Y-int = _____
Y-int = _____
12. 3x – y = – 6 13. x + 3y = - 9 14a) A vertical line
slope
= _____
slope = _____
slope = _____
Y-int = _____
Y-int = _____
b) A horizontal line
slope = _______
In 15 - 16, give the X and
Y-intercepts.
15. –3x + 2y = 12
16. y =
– 4x + 8
In 17 - 20, find the slope
between the two points.
17. (3, 2) and (6, 7)
18.
(4, –2) and (2, 6)
19. (–2,
5) and
(6, –7)
20.
(2, 0) and
(0, 7)
In 21 - 26,
solve the systems of equations. Show
all work by algebra method of your choice.
21.
3x
+ y = 14
22.
2x + 3y
= 12
x – y = 42
x + 3y
= –6
23.
3x - 2y = – 10
24.
–3x + 7y = 4
6x - 4y = – 20
2x
– 3y = –6
25.
9x – 2y = 4
26.
y = 4x – 25
y = 3x – 5
x = 3y – 2
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