you’re lucky i’m so bored — ordinarily i wouldn’t be doing your homework for you. i hope you actually try to understand what’s going on.

1- a slope is the change in y over the change in x coordinates, so:

(8-6) / (12-4) = 2/8 = 1/4 is the slope

2- 1/4 = 0.25 so 0.25/1

3- for every centimetre in height of a given object, its weight goes up by 0.25 ounces.

4-

function of a line is y=mx+b where m is the slope and b is the intercept

m we already know is 1/4

y=x/4+b

choose one of the two points:

8 = 12/4 + b

8 = 3 + b

5 = b

OR

6 = 4/4 +b

6 = 1 + b

5 =b

eitherway, intercept is 5

so:

y=x/4+5

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Dont you have a text book??