Unit 6 Review

Unit 6 Review

Linear Relationships

Multiple Choice

Which equation is the slope-intercept formula?

• y= bx + m

• y= mx + b

• y= mb

• y= m+b

Multiple Choice

What does the "b" in the slope-intercept formula represents?

• total

• y-intercept

• add

• slope

Slope-intercept formula

m= slope (move)

b= y-intercept (begin)

Equation From A Table

• m= change of y over change of x

• b= y value when x=0 (0,b)

Multiple Choice

What is the "m" (slope) of this table?

• 35

• 70

• 2

• 1/35

Multiple Choice

What is the "b" (y-intercept) of this table?

• 0

• 5

• -4

• 1/5

Multiple Choice

Which equation can be used to represent this table?

• y= 4x

• y= 12x + 2

• y= 8x

• y= 4x + 2

Equations from graphs

• Identify what type of slope the line has

• Identify the y-intercept (where the graph starts or crosses the y-axis)

• Determine the slope (rise/run)

• Make a table, if needed.

Multiple Choice

What type of slope does this graph have?

• Positive

• Negative

• Zero

• Undefined

Multiple Choice

Which table represents this graph?

Multiple Choice

Which equation can be used to represent this graph?

• y= -2x + 1

• y=-x + 2

• y= 2x - 1

• y= -2x

Equations from Verbal Descriptions

• Key words for slope: each, every, per

• Key words for y-intercept: initial fee, one- time fee, starting point

Multiple Choice

The Manning and Sons Moving Company charges a $40 service fee plus $15 an hour for each hour they work. Write an equation to determine the cost, y, for the total number of hours, x, Manning and Sons is called out.

• y=40x + 15

• y= 15x +40

• y= 40x

• y= 15x

Multiple Choice

Mr. Hawkins is buying shirts for his band students. He will pay $20.50 for each shirt plus a one-time fee of $ 4.95 for the delivery. Which equation can be used to find y, the total cost to buy x backpacks?

• y=4.95x + 20.5

• y= 20.5x

• y= 4.95x

• y= 20.5x + 4.95

Multiple Choice

An athlete runs at a speed of 6 miles per hour. Which representation shows the distance the athlete can run at this rate?

• y= 6x +1

• y= x + 6

• y= 6x

All together now.....

A mix of all the representations for linear relationships.

Multiple Choice

Which situation could NOT be used to describe the relationship shown in the equation? y=20x + 60

• $60 on a gift card and $20 is added each week.

• Starting position of 60 and increase by 20 each day.

• Brianna has made 60 bracelets and makes 20 bracelets each week.

• Steve has $20 and is saving $60 each week.

Multiple Choice

Which graph can be used to represent the table?

Multiple Choice

Which of the following representations could be used to represent the equation y= 2x

• James can run 1 mile every 2 minutes.

Multiple Choice

Which of the following representations can be used to represent the following table?

• Mila had 6 books and plans to collect 2 more each month.

• y= -6x +2

• Ashton went scuba diving. He started at 2 feet above sea level but he descends 6 feet per minute.

Bonus: Challenge Question

Multiple Choice

A store sells new movies for $15 each. Used movies sell for $8 each. Lydia is buying 2 new movies and x used movies. Which equation can be used to find y, the total price Lydia must pay in dollars?

• y= 8x + 15

• y= 15x + 8

• y= 8x + 30

• y= 30x + 8

Poll

Which of the following is your weakest skill?

• Equations

• Tables

• Graphs

• Verbal Descriptions

STUDY!!!

You got this :-)