An equation for the line graphed is y=−32x+3 y is equal to negative 3 halves x plus 3 y=32x+3 y is equal to 3 halves x plus 3 y=12x+3 y is equal to 1 half x plus 3 y=−32x+3 y is equal to negative 3 halves x plus 3

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

answer: do we write it

step-by-step explanation:

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.