Algebra Midterm Review

Matches made in heaven

100

2x+4=5x-6

10/3

200

3+2(x-4)-5x = 6x-1

-4/9

300

1/3x-3/4=5/6

19/4

400

5x/2+1/4=3x/8+3/4

4/17

500

Solve for y:  3x + 2y = 6

y = (6-3x)/2

Not all things are equal

100

Graph x < 2

open circle at 2, left arrow

200

Solve for x:  2x + 6 < 14

x < 4

300

3 - 2x > 7

x < -2

400

2x + 6 -3x < 2

x > 4

500

-3(x+2) > 9

x < -5

Express Yourself

100

Evaluate 3x - 5 if x=7

16

200

Simplify 2(3x-1) + 5x + 6

11x+4

300

Simplify (4x²+2x-1) - (3x²+5x-6)

x²-3x+5

400

Simplify and then Evaluate if x=2

3x² - 5x + 6x² - 7 + 8x

35

500

Simplify then evaluate if x=10

3(2x + 1) - 4(x+2)

15

A slippery slope

100

Graph y = -2/3x + 6

y-int at 6, down 2 over 3

200

Graph y = 5

Horizontal line at y=5

300

Graph 2x + 3y = 12

Use points (0,4) and (6,0)

400

Is the point (2, 5) on the line

3x + 4y = 24?

No

500

What is the equation of a line that has the points (0,3) and (1, 5)?

y=2x+3

"Per"fection

100

What is 30% of 40?

12

200

20% of what number is 9?

45

300

What is the final price of a $50 item on sale for 15% off?

$42.50

400

A $1500 computer loses 12% of its value each year.  How much is it worth in 5 years?

$791.60

500

Jimmy earns a 2.5% raise each year.  If his salary is $52,000 now, what will it be in 4 years?

$57,398.27