Question

y = 8x − 2, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs? A{(0, −2), (1, 6), (2, 14)} B{(0, −2), (2, 13), (−5, −40)} C{(1, 7), (2, 7), (3, 7)} D{(1, 6), (2, 13), (3, 24)}

Answer 1

The answer is A, because all of the ordered pairs work when inputed into the function.

8(0) - 2 = -2

8(1) - 2 = 6

8(2) - 2 = 14

The correct answer is A.

Answer 2

Answer: The correct option is (A){(0, −2), (1, 6), (2, 14)} .

Explanation:

y = 8x-2

• (0, −2) putting, x = 0 and y = -2

-2 = 8(0) - 2

RHS =LHS

• (1, 6) putting x = 1 and y = 6

6 = 8(1) - 2

RHS =LHS

• (2, 14) putting x = 2 and y = 14

14 = 8(2) - 2

RHS =LHS

Hence, all the coordinates in set (A) are satisfying the given function.