Messmer High School                              Name_________________________

 Algebra, Chapter 8 Quiz, week 3, V1      Hour_________

Vocabulary matching, 1 point each. All other problems, 2 points each

 

Slope-intercept equation

1

The first number in an ordered pair

 

Origin

2

The horizontal line where y = 0

 

x-axis

3

Equation in the form y = mx + b

 

Quadrant

4

One-fourth of the coordinate plane

 

Linear equation

5

A point drawn on a number line or coordinate plane representing a number of ordered pair

 

x-coordinate

6

The second number in an ordered pair

 

y-coordinate

7

The intersection where the x-axis crosses the y-axes

 

Slope

8

The vertical line where x = 0

 

Graph

9

Rise divided by run

 

y-axis

10

Variables are only raised to the first power.

Simplify                                                                                   Write using standard notation:

30 + 17x - 16x2+ 35x + 21x2 - 15x - 43                                              3.18 x 105

 

 

 

 

Write using scientific notation                                            Multiply

             260,000                                                                        (6A ­ 7)(3A + 8)

 

 

 

 

Factor completely                                                                  Solve for the given variable

22x4  ­  8x3 +  40x2                                                                  7x2  ­  21x  =  0

 

 

 

 

 

 

Find the slope of the line connecting each of the following sets of two points:

(-2,-2) and (5,3)

 

 

 

 

 

(-3,4) and (2,-1)

 

 

 

 

 

Write a T-chart below and find three solutions to 

y = 3x - 7.


                                                               

Change to slope-intercept form

2y ­ 5x = 18

 

 

 

 

 

 

 

Determine whether the given ordered pair is a solution to both equations. Show your work

(3,5) in 4x ­ 3y = -3

    and   y = 2x ­ 1

 

 

 

 

 

 

 

 

 

 

 

Solve by substitution: 

 y = 2x + 1

 2x + y = 5

 

 

Solve by addition:

4x + 2y = 20

3x ­ 2y =8

 

 

 

 

 

 

 

 

 

 

 

 

The sum of two numbers is one hundred twenty. The difference between them is sixteen. What are the numbers?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A jar of dimes and quarters holds  $15.25. There are 103 coins in all. How many of each are there?