Algebra Exam Review (MMS)

Solving Equations

100

6r + 7 = 13 + 7r

-6

200

−8n + 4(1 + 5n) = −6n − 14

-1

300

−3(x − 1) + 8(x − 3) = 6x + 7 − 5x

7

400

4(−8x + 5) = −32x − 26

no solution

500

−31 − 4x = −5 − 5(1 + 5x)

1

Writing Equations

100

One half of a number subtracted from 50 is 10

50 - 1/2x = 10

200

One-third times the difference of a number x and 5 is 4.

1/3(x-5)=4

300

Suppose y varies directly as x, and y = -200 when x = 20.  Write a direct variation equation that relates x and y.

y = -10x

400

Write the standard form of an equation of the line that passes through (0, 3) and has a slope of m = -2

2x + y = 3

500

Write the slope-intercept form of an equation for the line that passes through (-8, -1) and is parallel to the graph of y = -2x + 3

y = -2x - 17

Inequalities

100

Solve 4x + 10 > 2

x > -2

200

Solve: -1/2x < 6

x > -12

300

Solve |3x-2|<7

x < 3 and x > -5/3

400

–1 < -2x + 3 ≤ 5

2 > x ≥ -1

500

3 − 2(n − 4) > −1

x < 6

Functions

100

f(-2) if f(x) = -3x – 10

-4

200

Find f(4) if f(x) = 8s - 12

20

300

Find f(-1) if f(x) = x² - 3

-2

400

Is x = 2 a function?

no

500

Is y = 0 a function?

yes

Slope

100

Draw Mr. Slope Guy

 

200

(−4, 7), (−6, −4)

11/2

300

(19, 3), (20, 3)

0

400

(19, −2), (−11, 10)

-2/5

500

(17, −13), (17, 8)

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