Function or Not a Function
Miscellaneous
Equations of Linear Functions
Writing & Interpreting Linear Functions
Slope
100
Does the mapping diagram represent a function?
Yes!
100
TRUE or FALSE
The inputs of a function are the "y-values" and the outputs are the "x-values".
FALSE
100
Write an equation that calculates how many "d" dollars are in Cole's savings account after "m" months.
d=15m
100
A dog eats 7 treats per minute. Write a function rule that tells us how many treats y the dog eats in x minutes.
y=7x
100
What is the slope of (-8, 3) and (5, 2)
-1/13
200
Is the relationship a function?
(1,6) (2,3) (3,2) (4,1) (5,0)
Yes!
200
What is the Initial Value?
70
200
What is the linear equation represented by the table?
y=3x+1
200
It costs $1.99 to download a movie app and each movie costs $3 to stream. What is the initial value and what does it represent?
$1.99, it represents the cost to download the app.
200
What is the slope of: (5, 6) and (6, 7)
1
300
Does the relation represent a function?
No!
300
Find the Rate of Change.
-8
300
Write a linear function that produces the given relationship.
y=2/5x-1
300
Planet Fitness charges a $50 sign-up fee for a membership and then charges $25 per month. What is the initial value and what is the rate of change? What do they represent?
Initial value is $50, it is the sign-up fee.
Rate of change is $25, it is the monthly fee.
300
What is the slope:
2
400
Does the table represent a function? Explain your answer.
No because the input 3 has more than one output.
400
True or False
The ordered pair (5,17) satisfies the equation y=2x+7
True
400
Write an equation in y=mx+b that shows the water level after x minutes.
y = -8x+70
400
A street musician starts his day with $12 in his pocket. He earns $10 per hour playing his guitar. Write a linear function that can be used to find how much he earns y after playing for x hours.
y=10x+12
400
What is the slope of: 2x+3y=6
-2/3
500
What numbers can we put into the blank that will result in the relation NOT being a function?
(2, 5) (___, 6) (6, 8) (5, 3)
2, 6, or 5
500
Find the Slope.
2
500
Write the equation of the line.
y=5x-3
500
The price of Apple stock was $28 at the beginning of the month. It dropped by 50 cents every day since. Write a linear function that gives the price p of Apple stock after t days.
p=-0.5t+28
500
What is the slope of this line?
y-2^4+x/7=0
LINEAR