Use the function f(x)= - 3x +7 to answer the questions.
a. What is f(0)?

f(0)=7

Step-by-step explanation:

Given:

f(x)=-3x+7

Solve:

f(x)=-3x+7

f(0)=-3(0)+7 ⇔ Substitute the x value into the function.

f(0)=0+7

f(0)=7

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4