Question

If y = 7x − 5, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?

{(−5, 0), (9, 2), (−26, −3)}
{(2, 7), (1, 6), (3, 13)}
{(0, −5), (2, 9), (−3, −26)}
{(1, 3), (6, 18), (8, 15)}

Answer 1

Correct option is C). {(0, −5), (2, 9), (−3, −26)}

Explanation:

Given function is f(x)=7x-5.

Here, Options are given ordered pair

Let, x=0

f(x)=7x-5

f(0)=7(0)-5

f(0)=(-5)

The ordered pair is (0,-5)

Let, x=2

f(x)=7x-5

f(2)=7(2)-5

f(2)=9

The ordered pair is (2,9)

Let, x=(-3)

f(x)=7x-5

f(-3)=7(-3)-5

f(-3)=(-26)

The ordered pair is (-3,-26)

Thus, Correct option is C). {(0, −5), (2, 9), (−3, −26)}