MS C Test 1 Review Jeopardy

Linear Equations

100

Solve:

−4x+9+2x=25

x=−8

200

Solve:

6m−(2m−3)=15

m=3

300

Solve:

7w − 2(2w+4) = 11

w=19

400

Solve for a:

m = 5a+2b

a = (m-2b) / 5

500

Which equation has no solution?

A. 4x+8 = 4x+8

B. 5x+3 = 5x+7

C. 2x−1 = 2x−1

D. 3x+9 = 3(x+3)

B. 5x+3 = 5x+7

Inequalities

100

Solve:

−3(x−4) > 12

x < 0

200

Solve:

2(3x−1) ≤ 8

x ≤ 5/3

300

Solve and graph:

5−(x+2) > 0

x < 3

400

Solve and write in interval notation:

3x−7 ≤ 5

x ≤ 4, interval:(−∞,4]

500

Solve:

4x+2(3x−1) < 18

x < 2

Functions

100

Is the relation a function?

{(1,4),(2,5),(3,6),(1,8)}

No

200

Is the relation a function?

{(−2,3),(0,1),(4,7),(6,9)}

Yes

300

A graph extends forever left and right. What is its domain?

All real numbers

400

What is the range of the relation?

{(1,−2),(3,4),(5,0),(7,4)}

{−2,0,4}

500

Which relation represents a function?

A. {(1,2),(1,5),(3,7)}

B. {(2,3),(4,5),(6,7)}

C. {(0,1),(0,4),(2,8)}

D. {(−1,2),(−1,3),(5,7)}

B. {(2,3),(4,5),(6,7)}

Slope & Lines

100

Find the slope of the line through:

(2,4) and (6,8)

m=1

200

What is the slope of:

y= 1/2x + 7

m=1/2

300

What is the slope of:

x = 4

undefined

400

Write the equation of a line with:

slope = 2

y-int. = -5

y = 2x - 5

500

Find the equation of a line through:

(−3,5) and (1,−3)

y = -2x - 1

Systems

100

Solve by substitution:

y=2x+1

x+y=10

(3,7)

200

Solve by elimination:

x+y=8

x−y=2

(5,3)

300

Solve:

y=x+2

y=−x+6

(2,4)

400

A student earns $8/hr tutoring and $12/hr babysitting. She worked 10 hours total and earned $104. How many hours did she babysit?

6 hours

500

Solve:

2x+3y=13

x−y=1

(2,1)