Find the value of x when y is 5.
what's the equation tho?
THE QUESTION JUST TELL ME TO USE A GRAPH TO find the specified value.
A graph is used to relate two variables x, and y using a relation called a function.
For example, y=2x is a function that tells us that y has a value equal to twice the value of x.
This is what Jenny asked about, the "equation", or the function that relates x and y.
It is possible that the question just asked the specified value. However, modern textbooks often define a relation, or a function, at the beginning somewhere, and the following 4 or 10 questions refer to that particular function.
Can you look up a few lines to see if this is the case?