Question

Three friends are traveling to school. Let x represent the number of minutes traveled and y
represent the distance from the school in miles for each representation.


a. Who lives the closest to the school? Explain.

b. Who is traveling the fastest? Explain.

Answer 1

Answer:

christian closest-0.5 is the distance he traveled which is less than 8 and 6

Step-by-step explanation:

Freddie is the fastest because christian travles .1 miles every 2 minutes being the slowest  and .8 is greater than .66666

Answer 2

Answer:

a. Christian

b. Freddie

Step-by-step explanation:

a.

Freddie's equation is y = -0.8x + 8

The y-intercept is the value of y when x = 0. At time 0, y = 8, so he lives 8 miles from school.

Christian's y-intercept is 0.5 miles since at time = 0, he is 0.5 miles from school.

Trevor's y-intercept i6 6, so he lives 6 miles from school.

Christian lives closest to school.

b.

The speed for each one is the slope.

Freddie's speed is -0.8 miles/minute

Christian: speed = slope = (0.5 - 0.4)/(0 - 2) = 0.1/(-2) = -0.05 miles/minute

Trevor's speed is: slope = rise/run = -2/3 miles/minute

Freddie's speed is the highest.