Question

Why is slope also called the "rate of change"?

Answer 1

that is because slope is telling you how much y is changing in relation to how much x is changing, in notation:
\[m=\frac{\Delta y}{\Delta x}\rightarrow \frac{y_2-y_1}{x_2-x_1}\]

Answer 2

it is the rate at which the line or graph changes. A slope is always constant so it's called the constant rate at which the line is being changed. For example, with a slop of 2, the line is changing at a rate of 2.

Answer 3

^ is true for linear equations and is a better definition that what I said.

Answer 4

Thanks soooo much guys :)