Can someone please explain how to find a cofunction with the same value as the given expression. Please explain step by step. Ex. How would you find the cofunction of sin 7°

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Anyone know? is appreciated! will mark brainliest if correct!

(03.03 mc) choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) select one: a. line through the points 0 comma 6 and 12 comma 0 b. line through the points 0 comma negative 6 and 12 comma 0 c. line through the points 0 comma negative 12 and 6 comma 0 d. line through the points 0 comma 12 and 6 comma 0