How do i find an exactions for a graph

Find the equation using the point (4,8)

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?

The quotient of 15 and a number is 1 over 3 written as an equation