Unit 1 - Quiz Review (A2)

Solving Equations

100

Solve for x:

x + 7 = 15

x = 8

200

Solve for x:

3x = 21

x = 7

300

Solve for x:

2x - 5 = 13

x = 9

400

Solve for x:

4(x-3) = 20

x = 8

500

Solve for x:

3(2x-5)+4 = 25

x = 6

Solving Literal Equations

100

Solve for W

A = LW

W = A/L

200

Solve y = mx + b for b.

y - mx = b

300

Solve P = 2L + 2W for L.

L = P/2 - W

400

Solve d = rt for t.

t = d/r

500

Solve A = 1/2bh for h.

h = 2A/b

Properties of Linear Functions

100

In y = mx + b, this letter represents the slope.

What is m.

200

In y = mx + b, this letter represents the y-intercept.

What is b.

300

What is the slope of y = 4x - 7?

m = 4

400

A line with a positive slope does what as you move from left to right?

It increases.

500

What is the slope of a line passing through (2,5) and (6,13)?

m = 2

Linear Inequalities

100

Solve x + 3 > 7.

x > 4

200

Solve 2x <= 10

x <= 5

300

When you multiply or divide both sides of an inequality by a negative number - what must you do?

Reverse/flip the inequality sign.

400

Solve -3x > 12.

x < -4

500

Solve and graph.

3x - 4y <= 12

y >= -3 + 3/4x

Bonus Questions

100

A line has a slope of -3 and passes through (2,4). Write the equation of the line.

y = -3x + 10

200

Solve for r:

C = 2pir

C/2pi = r

300

Is the relation {(-2,1), (0,3), (2,5), (2,7)} a function? Explain.

No, the input 2 has 2 different outputs.

400

Solve the inequality.

-2(3x - 4) >= 16

x <= -4/3

500

A line passes through (1,2) and (5,10). Find its slope, y-intercept, and slope intercept form equation.

Slope = 2

y-intercept = 0

Equation y = 2x