EXPRESSIONS, EQUATIONS, AND FUNCTIONS

REAL NUMBERS

LINEAR EQUATIONS/GRAPHING

WRITING, SOLVING AND GRAPHING LINEAR EQUATIONS

SYSTEMS OF EQUATIONS

4(6n+7) when n=6

What is 172.

11-square root of x where x=64

What is 3.

Identify the slope and y-intercept:
6x+3y=18

What is m=-2;b=6

Equation of the line that passes through the point (-2,9) and has slope -2.

What is y=2x+5

Solve the linear system: 5x+y=4, 6x-y=7

What is x=1, y=-1 or (1,-1)

3 times the difference of a number m and 15 is equal to 30 (as an expression)

What is 3(m-15)=30.

Simplify:
-7x(x-13)

What is 7x^2+91x.

X-intercept and Y-intercept:
-2x+5y=-20

What is x-intercept=10; y-intercept=-4

Equation in standard form of the line that passes through the two given points: (3,9) (1,1).

What is -4x+y=-3.

Graph: x>4, y<2

What is look at graph.

x=8 a solution for 2x+10<4x-7

What is no 26<25 does not work!

-16-(-25.2).

What is 9.2.

Solve for x:
16x-4=4(2x-3)

What is x=-1.

Equation of the line that passes through the given point and is perpendicular to the given line: (3,-3), y=x+5

What is y=-x.

Is the ordered pair a linear system?
(8,5), 5x-4y=20, 3y=2x+1

What is No.

You buy apples at $2 per pound and oranges at $3.50 per pound. What is an expression for the total cost of fruit purchased? Also, what is the total cost of 7 apples and 4 oranges?

What is 2x+3.50y=c ; 28

An elevator moves at a rate of -5.8 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?

What is 465.2 feet.

Solve proportion:
b/8=9/4

What is b=18.

Solve: abs(x-2)+6>9

What is x>5 or x<-1.

Graph: x<3, y>1, y>-x (greater than or equal to)

What is look at graph.

A rectangular banner is 16 feet long and has an area of 80 square feet. What is the perimeter of the banner?

What is 42 feet.

True or False: If a number is positive, then its opposite is negative.

What is True.

Graph:
y=-x+7

What is look at graph.

Graph:
y>4x-3

What is look at graph.

Solve the linear system:
2x+9y=16, 5x=1-3y

What is x=-1;y=2 or (-1,2)