Slope (Rate of Change)
Y-intercept (Initial Value)
Comparing Function Model
Linear vs Nonlinear
Slope-Intercept Form
100
What variable does slope represent in this equation:
y=mx+b
m
100
What does the "b" represent in a verbal description?
The initial value or the beginning
100
Which of the following is a linear function?
y=3x2 - 9x + 2
y=3x+5
3xy = 8
What is y=3x+5?
100
The graph of a nonlinear function shows a constant rate of change. True or False?
What is false?
100
Slope: 4
Y-intercept: -800
What is the equation in slope-intercept form?
What is y=4x-800?
200
What is another word that describes slope?
Rate of change
200
What variable does y-intercept represent in this equation:
y=mx+b
What is b?
200
Which one represents a linear function?
What is none of them?
200
Create a table with the following values in this order. Does the table represent a linear or a nonlinear function? X: 1, 2, 3, 4 and Y: 1, 3, 5, 7
What is linear?
200
Identify the slope and y-intercept of this equation:
y=-1/8x + 9
What is m=-1/8 and b = 9?
300
Find the slope of this graph:
m = -1?
300
What is the initial value of the following table?
What is 360?
300
The table and graph show how many words Morgan and Brian typed correctly on a typing test. For both students, the relationship between words typed correctly and time is linear.
Which student types more correct words per minute?
Who is Brian?
300
Create a table with the following values in this order. Does the table represent a linear or a nonlinear function? X: 2, 4, 6, 8 and Y: 3, 6, 9, 12
What is linear function?
300
Biking at a constant rate, Elise travels 35 miles in 7 hours. Write the equation in slope-intercept form.
What is y=5x?
400
Find the slope from the following ordered pairs:
(5, -3) and (-1, 6)
m = -3/2 (or 3/-2, -1.5)?
400
The graph of a linear relationship passesthrough (0, 2), (1, 5), and (3, 11) but not through (2, 7). What is the y-intercept?
What is 2?
400
Josh and Maggie buy MP3 files from different music services. The monthly cost, y dollars, for x songs is linear. The cost of Josh’s service is y = 0.50x + 10. The cost of Maggie’s service is shown below.
Which service is cheaper? Josh's service or Maggie's service?
What is Josh's service?
400
Does this represent a function?
No
400
Identify the slope and y-intercept of this table.
What is m=-1/4 and b = 50?
500
The following table shows Sally's distance from her house to the park:
How fast is Sally driving?
What is 15 miles per hour?
500
What is the initial distance (initial value) of this table?
What is 25 miles?
500
Ben and Sally eat at the same restaurant. Then they each drive from the restaurant, which is a different distance from their homes, to the same park.
How much farther is Ben’s home from the restaurant than Sally’s home?
What is 25 miles?
500
Plot the points. Does this graph represent a linear or a nonlinear function? (-2, 4), (-1, 3), (0, 1), (1, 1), (2, 0)
What is nonlinear function?
500
The graph of a linear relationship passesthrough (0, 2), (1, 5), and (3, 11) but not through (2, 7). Which of the following is the equation for this linear relationship?
A) y = 3x − 1
B) y = 3x + 2
C) y = 5x
D) y = 2x + 3
What is B (y=3x+2)?