A+ Answers

1. Graph the following set on a number line: {x|x ≤ –1}.

2. Simplify the expression (–3)2
.
A. –9
B. –6
C. 6
D. 9
3. Which one of the following equations represents the y-axis?
A. y = –1
B. y = 0
C. x = –1
D. x = 0
4. Solve the following equation for w:
P = 2L + 2W

6. Write the numeral 0.0284 × 10^4 in scientific notation.
A. 2.84 × 10^2
B. 284
C. 28.4 × 10^1
D. 0.284 × 10^3
7. Simplify the expression –3^2
.
A. –6
B. 6
C. 9
D. –9
8. Find the slope of the line determined by the equation 6x − 3y = 18.
A. m = –6
B. m = 6
C. m = –2
D. m = 2
13. Draw the graph of the following linear function and give the domain and range:
h(x) = –2x + 3.
Domain:  D = {x|xR}     Range:  R = {y|yR}

15. Find the slope-intercept equation of the line passing through (2, 1) with a slope of m = 3.
A. y = 3x − 5
B. y = 3x − 1
C. y − 1 = (3x − 2)
D. y = 3x
16. The function f(x) = x^3 is called the _______ function.
A. absolute value
B. squaring
C. quadratic
D. cubing
18. Write the numeral 0.034 in scientific notation.
A. 34 × 10^(–3)
B. 3.4 × 10^(–2)
C. 3.4 × 10^2
D. 0.34 × 10^(–1)
20. Solve the following equation for z: 3(z + 2) − 2 − z = –(5 + z)
A. z = –3
B. z = –8
C. z = 3
D. z = 8
21. Find the midpoint of the line segment joining (4, 8) and (–2, –6).
A. (1, 1)
B. (–1, –1)
C. (2, 2)
D. (2, –2)
22. A 152-foot piece of rope is to be cut into four pieces. Each successive piece is to be 2 feet longer than
the previous one. Find the length of the shortest piece.
A. 37 feet
B. 40 feet
C. 38 feet
D. 35 feet
24. On the rectangular coordinate system, plot the point (–1, –2).

25.
A.
B.
C.
D.

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