(4,3) (7,9) (5,6) (-4,1)
Function, x-values don't repeat
m = -9
b=3
f(x)= -9x+3
Billy was saving money for a car. He has $2,670 in his back account currently. He plans to continuously add $253 each week. Write a function for the amount of money in Billy's account
f(x)= 253x+2670
(0,3) (8,9) (3,0) (-4,1)
Function, no x-values repeat
m = 7
b= -16
f(x)=7x-16
Diana was in a hot air balloon. She was at 183 meters in the air. She continued to rise 12 meters per minute. Write a function to represent for Diana's balloon ride.
f(x) = 12x+183
x y
2 4
7 -8
8 4
4 -3
9 0
Function, no x-values repeat
m = -5
b=16
Amy drives 65 miles per hour while on a road trip. She has already driven 197 miles. Write a function for the amount of miles she has driven.
f(x)= 65x+197
x y
2 7
7 -8
8 2
2 -3
9 0
Not a function 2 repeats
(3,7) & (5,11)
f(x)= 2x+1
Frankie already has $23.75 worth of groceries but he needs one last item, apples. The green apples were on sale $0.79 per pound. Write a function to represent the amount she spent on groceries.
f(x)= 0.79x+23.75
Explain the vertical line test
a vertical line can only cross the graph once
OR
a vertical line will not cross the graph more than once
(4,5) & (8,7)
f(x)=0.5x+3
Ezra was typing a paper for his English class. He already has 357 words for his 10 page paper. Over the next couple days, he writes 96 words per day until he finishes his paper. Write a function to represent the time he spent on his paper.
f(x)= 96x+357