Algebra Overview

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7

• 5/49

• 5/7

• 10/49

Solve for x.
2x + 1 = 5

• x = 2

• x = 1

• x = 3

• x = 13

Simplify by combining like terms. 
8x + 4d + 7y + y + 3x = 

• 10x=

• 84713xdy=

• 11x+ 4d + 8y=

• 5x + 11dy=

Simplify by combining like terms.
7c -8a + 9a + 11c 

• 18c + 1a =

• -4c +17a

• 78911ca = 

• -1+ 20c

What is the value of y in the solution to this system of equations? 3x - 5y = 22 y = -5x + 32

Mathematical Equivalence

ON

Graph the solution to the system. The first equation has been plotted for you.

y = -3x-3

y= 4x +4

Meg's teacher asked her to find the zero(s) of the equation below.  Meg decided to factor to find the zero(s). 
0= x²-4x +4

(x + ___) (x + ___)

• (x + -2)(x + 2)

• (x + -4)(x + 2)

• (x + -4)(x + 4)

• (x + -2)(x + -2)

Emily makes $10 per hour at her job.  Her paycheck was $370.  If h represented the number of hours Emily worked, which equation below represents Emily's paycheck?

• h =10/370

• 370h = 10

• 370 (10) = h

• 10h = 370

Solve the equation
4(2x-5)=7(2x+4)

• 8

• -8

• -1.5

• 1.5

What is the y-intercept of the line?

• y = 1/2

• y = 1

• y = -1/2

• y = -1