Is this relationship a function?
yes, this is a function because every input has one output.
What is the rate of change?
60
Define the x and y variables.
let x = the number of hours
let y = the cost
y=25x+50
Nicole will earn $28 babysitting.
Is this relationship a function?
No, this is not a function because an input of 8 has outputs of 21 and 34.
What is the slope and y-intercept?
m=-1/2 and b=1
Define the x and y variables.
let x = the number of days
let y = the height of the plant
y=1.5x+5
The plumber will earn $425.
Is this relationship a function?
No, this is not a function because an input of 70 has two outputs.
What is the slope and y-intercept?
m=3 and b=-4
Define the x and y variables.
let x = the number of seconds
let y = the plane's altitude
y=-5x+8500
There is 255 gallons of water in the tank.
Is this relationship a function?
yes, this is a function because every input has one output.
Who types faster? Justify your answer!!
Morgan types 15 words per minute.
Brian types 20 words per minute.
Brian types faster than Morgan.
Define the x and y variables.
let x = the number of months
let y = the cost of internet service
y=18x+45
It costs $200 to rent the canoe for 6 hours.
Is this relationship a function?
No, this is not a function because an input of 4 has outputs of 2 and -2.
Which plan is cheaper if a student needs to be tutored for 6 hours?
Plan 2
Define the x and y variables.
let x = the number of months
let y = the cost of the gym membership
y=33x+30
Attorney A charges $4,150 for 26 hours.
Attorney B charges $4,700 for 26 hours.
Attorney A has the better price.