I need to find the answer for this 1 question that I am confused on

Step-by-step explanation:

If an input values has two same output values, pair of input-output values will not represent the function.

Set of ordered pairs of input-output values represent a function, if every input value has a different or same output value.

1(a). Yes. Relation and function.

1(b). Every input value has one output value.

1/5^2 = 7.56/45

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2