Solve for x by cross multiplying then isolating the variable:

cross multiply
15x=90 Isolate the variable
x=6
Solve for y by cross multiplying then isolating the variable:

cross multiply
9y=90 Isolate the variable
y=10
An exponential function is a mathematical function of the following form: f ( x ) = a x. where x is a variable, and a is a constant called the base of the function.
I have attached some answers in the photos below hope you find them useful
Answer:

Step-by-step explanation:
The slope of a line given two points can be found by using the formula

From the question we have

We have the final answer as

Hope this helps you