Answer:
Brainliest
Step-by-step explanation:
y=2.78(4)-4.4 = 6.72
63720 i just did the math
The functional equation of the line is f (x)=a*x+b
you have already a: -4 -->f (x)=-4 x+b
Now you can use the point (3;-3)
3 is the x-coordinate and -3 the f (x)-coordinate
--> -3 = -4*(3) + b Now you can solve it
-3 = -12+b (+12)
b = 9
ANSWER: f (x) = -4x + 9
The total amount of money he had to pay for the bike is $3,954.02 because 6 percent of 7 is 4.2
