This question is "convert units multi-step word problems (us customary)
need ..

7  1/2 miles by bus, 1/2 mile on foot

Step-by-step explanation:

Gloria traveled 8 miles total, of which 880 yards were on foot.

To determine how far she traveled by bus, subtract 880 yards from 8 miles.

1) Convert 880 yards to miles:

880 yards        1 mile

* = 1/2 mile

       1              1760 yd

Then Gloria traveled (8 miles less 1/2 mile), or 7  1/2 miles by bus and 1/2 mile on foot.

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is