Question

Which of the following equations defines y as a function of x?

Answer 1

first box for x = 8
second box for y = 135
third box for x = 24
fourth box for y = 263

Answer 2

Answers:

first box for x = 8

second box for y = 135

third box for x = 24

fourth box for y = 263

To work out x you put the y in place of the y in the equation and do the inverse

To work out y you put the x in place of x in the equation and times by 8 and add 7 as the equation says to do.