Answer:
(A)If x represents the number of songs she downloads then it is a variable because of the AMOUNT of songs she downloads.
Step-by-step explanation:
For example if we had f(x)=2 the equation would be c=4.99+.75(2)
.75*2=1.50+4.99=
(6.49 = c) cost per month if she downloads 2 songs
Answer:
D. -3.3
Step-by-step explanation:
=> 2.8x = -9.24
=> x = -9.24/2.8
=> x = -3.3
The correct answer is D.
If you look at the equation you can see that the line crosses at the points
(1,5) and (-2, -4). Use this set of ordered pairs to find the slope.
(-4-5)/(-2-1) = (-9/-3) = 3
The use the point-slope formula and fill in the ordered pair (1,5) with the slope.
y - 5 = 3( x - 1)
4/10 and 3/10 are the answers
