ALGEBRA 1(7th hr) REVIEW

EXPRESSIONS, EQUATIONS, AND FUNCTIONS

REAL NUMBERS

LINEAR EQUATIONS/GRAPHING

WRITING, SOLVING AND GRAPHING LINEAR EQUATIONS

MISCELLANEOUS

100

Evaluate 4(6n+7) when n=6

172

100

Evaluate: 11 - square root of x where x=64

100

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

What is m=-2; b=6

100

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

y = -2x + 5

100

Solve: -24 - (7 - 10 + 1)

-22

200

Write the following as an expression: 3 times the difference of a number m and 15 is equal to 30

3(m - 15) = 30.

200

Simplify: -7x(x - 13)

-7x²+ 91x

200

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

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

200

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

What is -4x + y = -3 OR 4x - y = 3

200

Graph: x > 4, y < 2

Look at graph.

300

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

No 26 < 25 does not work!

300

-16 - (-25.2)

9.2

300

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

x=-1

300

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

y = -x

300

Simplify: -7x - (-3x) + 3y - 8y

-4x - 5y

400

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 pounds of apples and 4 pounds of oranges?

2x + 3.50y ; $28

400

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.

400

Solve the proportion: b/8=9/4

b = 18

400

Solve: absolute value (x-2) + 6 > 9

What is x>5 or x<-1.

400

Simplify: -2(9 + 2a) - 8(4 - 5a)

36a - 50

500

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

42 feet.

500

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

True.

500

Graph: y = -x + 7

Look at graph.

500

Graph: y = 4x - 3

What is look at graph.

500

Solve for m: -5 - (-m) = 92