Which function has an inverse that is also a function?
{(-4, 3), (-2, 7), (-1,0), (4, -3), (11, -7)}
{(-4, 6), (-2, 2), (–1, 6), (4, 2), (11, 2)}
{(-4, 5), (-2, 9), (-1, 8), (4, 8), (11, 4)}
{(-4, 4), (-2, -1), (–1, ), (4, 1), (11, 1)}

11

step-by-step explanation:

32.50-7.50=25

225/25=11

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

answer: can you show the options ?

step-by-step explanation: