Answer:
.
Step-by-step explanation:
A rate of change is a rate that describes how one quantity changes in relation to another quantity. If x is the independent variable and y is the dependent variable, then. rate of change=change in y change in x.
[4 over x equals 5 over 10]
Solve for x, so you need to isolate/get x by itself in the equation.
Multiply x on both sides

Multiply the inverse of 5/10, which is 10/5, to get rid of the fraction and get x by itself


8 = x
C. No, the graph fails the vertical line test. I believe that is the answer.
Answer:
41 units
Step-by-step explanation:
The diagonal forms a right triangle with the sides, so we can use Pythagorean theorem.
c² = a² + b²
d² = 9² + 40²
d = 41
The diagonal is 41 units long.
B........................