From a table
Which is the measure of the rate of change (slope)?
y = 2x + 10
2
Which letter represents the rate of change or slope?
m
What is the equation in slope-intercept form if
m = 7 and b = 3
y = 7x + 3
True or False
y = mx + b is a linear equation
true
Which number is the y intercept, when x=0?
y = 3x + 21
21
Which letter represents the y-intercept, when x = 0?
b
Write in slope-intercept form: slope = 4; y-intercept = -6
What is y = 4 x - 6?
For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. What is the linear equation, using y=mx+b
y=5x+3
Which number is the rate of change?
y = 4x + 20
4
What does the letter m stand for?
the slope of the line
Solve for y, when x= 3
y=5x+2
y= 17
A bike rental shop charges customers a flat fee of $5.00 just to start the rental (the safety check and helmet fitting). Then, they charge an additional $2.00 for every hour the bike is used.
Question: Write an equation in the form y = mx + b that represents the total cost (y) for renting a bike for any number of hours (x).
Equation: y = 2x + 5
What is the beginning value (Term 0) (y-intercept)?
y = 4x + 8
8
What does the letter b stand for?
the y-intercept
Solve for y, when x= 21
y=7x-3
y=144
Rufus collected 100 pounds of aluminum cans to recycle. He plans to collect an additional 25 pounds each week. Write an equation in y=mx+b form.
y=25x+100
What is the rate of change (slope)?
y = 1/2x + 2
1/2
To find the rate of change or slope you....
Solve for y, when x= 87
y=8x-4
y=692
A canoe company has a $25 coupon off any rental. A canoe rental cost $45 per hour. Write an equation in y=mx+b form.
y=45x-25