Chapter 4 Test Review

Chapter 4 Test Review

Open Desmos Graphing Calculator in a 2nd tab​

Corrections/test will be taken after we finish this!

Finding slope

(graph)​

Multiple Choice

Find the slope

• 1/2

• -2

• 2

• -1/2

Multiple Choice

Find the slope of the line.

• Undefined
• 0
• 1
• -1

Finding slope

(2 points or table)​

​Slope formula:

​***CAN USE

DESMOS!

​

Multiple Choice

Find the slope of:
(7,1) and (-2,1)

• 0
• -1/2
• undefined
• -8

Multiple Choice

What is the slope?

• 1/2
• 2
• 7
• 3

Graphing lines​

​Slope-intercept form:

​*Can use Desmos to check!

Multiple Choice

Which graph represents the equation $$y=4x-1$$  

Standard to slope-intercept form

​Standard form:

Multiple Choice

Write the equation in slope-intercept form: 2x + 2y = 6

• y = - x + 3
• y = x + 3
• y = 2x +6
• y = - 2x + 6

X- and Y-Intercepts

​***CAN USE DESMOS to check!

​

​To find the x-intercept: Plug in 0 for y and solve for x​​ (divide last # by # in front of x)​

​

To find the y-intercept: Plug in 0 for x and solve for y​

(divide last # by # in front of y)​​

Multiple Choice

Name the x- and y-intercepts for the equation:
5x - 3y = 15

• x: (3, 0) and y: (0, -5)

• x: (0, 3) and y: (-5, 0)

• x: (5, 15) and y: (15, 3)

• x: (0, -3) and y: (5, 0)

Slope application

​***CAN USE DESMOS!

​

​Find 2 points the problem is asking for, write as ordered pairs, & use the slope formula (​y2-y1/x2-x1) OR do rise/run

​

Ex: Rate of change in Karen's distance in first 2 hours?​

Multiple Choice

Find the average rate of change of Pete's height from 3 years old to 5 years old.

• 2 inches per year
• 8 inches per year
• 2 years
• 4 inches per year

Horizontal/Vertical Lines

​***CAN USE DESMOS!

​

Ex: Graph x=-4​

​

Multiple Choice

What is the equation of the red graph pictured?

• y = -4

• x = -4

• y = 4

• x = 4