Answer:
C. f(x) = x - 7 all over 4
Step-by-step explanation:
NB: Let f(x) = y
Exchange X and Y
Make y the subject
f(x) = 4x + 7
y = 4x + 7
x = 4y + 7
x - 7 = 4y
x - 7 all over 4 = 4 ÷ 4
y = x - 7 all over 4
16 and 4,32 and 8, and 40 and 20
125 feet in 5 seconds as a unit rate would be125/5 or 25/1
4 pairs of parallel lines