Midterm ALG1 CP Study Guide

Use cross products to determine which pair of ratios forms a proportion.

• 5/25 = 6/36

• 5/35 = 48/6

• 5/35 = 6/48

• 5/30 = 6/36

Determine whether the sequence is an arithmetic sequence. If it is, state the common difference. 2. 5, 0, –4, −7, ...

• True

  Common difference-3

• False

• True

  Common difference 3

Find the slope of the line that passes through the pair of points. (-4, 1), (5, 4)

• 0.3
• 0.7
• 1.8
• 2.5

Graph the equation. y=-3x+ 5

• Graph the line with a y-intercept at (0,0) and a slope of 3.
• Graph the line with a y-intercept at (0,5) and a slope of -3.
• Graph the line with a y-intercept at (0,5) and a slope of 0.
• Graph the line with a y-intercept at (5,0) and a slope of -3.

Determine whether the equation is a linear equation. If so, write the equation in standard form. y = 5x² + 2

• y = 5x + 2
• y = 5x - 2
• y = 5x^3 + 2x
• Not a linear equation

Find the x- and y-intercepts of the graph of each linear function.

• x=2

  y=3

• y=2

  x=3

Find the next three terms of the arithmetic sequence. 7. 52, 44, 36, 28, . . .

• -20
• -12
• 20, 12, 4
• -4

Write an algebraic expression for each verbal expression. 46 increased by four times x

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OFF

Write a verbal expression for the algebraic expression. 9.5x + 40

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OFF

Evaluate the following expression if x = 12, y = 6, and z = 8. x²y-2z

• 864
• 844

• 852
• 876