<u>ANSWER</u>
Only the equation is a function
<u>EXPLANATION</u>
is graphed above with its inverse 
.
We perform the vertical line test for both the equation and its inverse.
The equation passed the vertical line hence it is a function.
However, failed the vertical line test, hence it is not a function.
Since the shape is a square the sides are equal. Then we need to find x such that x * x = 169.
Sqrt(169) = 13
So x = 13
Answer:
C^2 = a^2 + b^2
The formula for the pythagorem theory
first divide 90 by 4 to see how many words per minute
90 ÷ 4 = 22.5
then multiply 22.5 by 10 to get your answer
so your answer is;
225 words per 10 minutes
