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EXPRESSIONS, EQUATIONS, AND FUNCTIONS
REAL NUMBERS
LINEAR EQUATIONS/GRAPHING
WRITING, SOLVING AND GRAPHING LINEAR EQUATIONS
SYSTEMS OF EQUATIONS
100

What is the value of 6n+7 when n=2?

What is 19.

100

What is the square root of 9? 

What is 3.

100

Identify the slope and y-intercept: y=-2x+6

What is m=-2;b=6

100

What is the equation of a line that has a y-intercept of 5 and has slope 2.

Hint: Think of slope-intercept form.

What is y=2x+5

100

Solve the linear system: 

x+y=4 

x-y=8

What is x=6, y=-2 or (6,-2)

200

Create an expression which represents "The difference of a number m and 15 is equal to 30".

What is m-15=30.

200

Simplify: -x(x-10)

What is -x^2+10x.

200

Identify the slope and y-intercept of: -10x+5y=-20

m=2, b=-4 
200

What is the equation of a line that has a y-intercept of -10 and has slope of 1?

Hint: Think of slope-intercept form.

What is y=x-10

200

Solve the linear system: 

2x+5y=10 

2x+y=2

What is x=0, y=2 or (0,2)

300

Is x=8 a solution to the inequality 2x+10<4x-7 ?

2(8)+10<4(8)-7

16+10<32-7

26<25

What is no 26<25 is not true!

300

True or False: Subtracting a negative number means the same thing as adding.

What is True.

300

Solve for x: 16x-4=8x+12

What is x=2.

300

What is slope intercept form? 

What is y=mx+b.

300

Is the ordered pair a solution to the linear system? (0,-5) 

5x-4y=20 

3y=2x+1

What is No.

5(0)-4(-5)=20 -> 0 - (-20) = 20 which is true.

3(-5)=2(0)+1 -> -15=0 + 1 which is not true.

400

You buy x apples at $2 per pound and y oranges at $3.50 per pound. What is an expression for the total cost, c, of the fruit purchased?

What is 2x+3.50y=c

400

An elevator moves at a rate of -10 feet per second from a height of 500 feet above ground. It takes 6 seconds for the elevator to make its first stop. How many feet about the ground is the elevator now?

500 - 10 - 10 - 10 - 10 - 10 - 10 = 440.


What is 440 feet.

400

Solve for x: x/8+10=15

What is x=40.

400

What is point slope form? 

What is y-y1=m(x-x1)

400
Name one method which could be used to solve systems of equations. 

What is elimination, substitution, or graphing.

500

A rectangular banner is 16 feet long and 5 feet wide. What is the perimeter of the banner?

16 + 16 + 5 + 5 = 42


What is 42 feet.

500

What is -16 - (-20)?

What is 4.

500
True or False: When the slope of a line is positive, this means the line is decreasing over time.

What is false.

500

What is the equation of a line in point slope form which passes through the point (4,5) and has a slope of 2? 

What is y-5=2(x-4)

500

True or False: Solutions of systems of equations are the coordinate pairs in which their graphs intersect with one another. 

What is true.