Marcus buys three notebooks for school. Each notebook is the same price. Marcus uses a coupon that is worth $2 off his total purchase. He pays a total of $7 with the
coupon. Which equation can be used to find the cost of one notebook, n?

i think the answer is b

a, b, c, d are correct.

step-by-step explanation:

we have g(x) = 3 and are required to find which option is a translation of g(x).

now, 'translation' is a transformation which means to shift the function in any direction and the general form of translation is g(x) + k, where k is any real number.

so, according to the options we see that all are correct as they satisfy the general form of translation.

also, it can be seen from the graph below that the function g(x) = 3 is shifted from its position in all the four options.