The graph below shows four straight lines, a, b, c, and d:

which line is represented by the function f(x) = 2x + 1?
a .line a
b .line b
c. line c
d .line d

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Which of the following pairs of functions are inverses of each other? o a. f(x)=x72+8 and 96-9 = 7/x+2) =8 o b. f(x)= 6(x - 2)+3 and g(x) - *#2-3 o c. $4) = 5(2)-3 and 90- 4*: 73 o d. f(x) = 6)-12 and 910 – +12

Find the cosine function that is represented in the graph.