Chapter 2 Review

Solving Equations

100

1/7x + 2 = 5

x=21

200

3(a - 3)- 4=5

a=6

300

6(x + 2)- 3= 6x + 12

No solution

Inequalities

100

Solve and graph the inequality.

2 < -4 + 3y

2 < y

Open dot and line pointing to the right ->

200

Solve and graph on a number line

-7x - 13 > 22

x < -5

Open dot and line pointing to the left <--

300

Given the function f(x) = 10 – 3x, for what values of x is f(x) < 22.

x > -4

Literal Equations/Inequalities

100

Solve a + bx= c for x

x= (c-a)/b

200

Solve 450= xq -n for q

q=(450+n)/x

300

Solve the inequality for x

a + bx > cx - d

x > (-a-d)/(b-c)

or

x < (a+d)/(c-b)

Graphing

100

Why do we shade inequalities?

To show where the solutions lie

200

Write -4x - 5y = 10 in slope-intercept form, then graph it.

y= -4/5x - 2

m=-4/5

b=(0, -2)

Negative slope line

300

Graph y > -5x - 5

Dashed line, shade to the right of the graph and need test point work.