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Unit Test — Unit test Answers

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Raphael graphed the system of equations shown.y = – 3y = x – 0.8What is the best approximation for the solution to this system of equations?

Question illustration
A
(–3.2, –3)
B
(–2.9, –3)
C
(–2.2, –3)
D
(–1.9, –3)
22
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A coordinate grid with one line labeled y equals 3 x plus StartFraction 3 over 4 EndFraction. The line passes through points at (negative 1, negative 2) and (0, 1).

Question illustration
A
–6x + y =
Option A
B
6x + y =
Option B
C
–6x + 2y =
Option C
D
6x + 2y =
Option D
23

Which points are solutions to the linear inequality y < 0.5x + 2? Select three options.

A
(–3, –2)
B
(–2, 1)
C
(–1, –2)
D
(–1, 2)
E
(1, –2)
24

On a coordinate plane, a solid straight line has a positive slope and goes through (negative 3, negative 5) and (0, negative 4). Everything to the right of the line is shaded.

Question illustration
A
y ≥ x – 4
Option A
B
y ≤ x – 4
Option B
C
y ≤ x + 4
Option C
D
y ≥ x + 4
Option D
25

What value of b will make the system of equations have an infinite number of solutions?y = -2x + b 4x + 2y = 8

A
2
B
8
C
4
D
-4

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Unit Test — Unit test Answers — Algebra I