The number of miles per gallon you get in car is dependent on many thing, one of which is how fast you drive. Gas mileage is generally poor for people that drive very slow or very fast. The following chart shows the mile per gallon at various speeds for a certain vehicle. Speed (Miles per hour) Gas Mileage (Miles per Gallon)

5 12
15 22
25 27
35 29
45 30
55 29
65 26
75 21
85 13

Write an equation for the curve of best fit.
What two speeds will give you a gas mileage of of 25 mpg (miles per gallon)?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. identify the domain for each of the given functions.