Question

Find the average velocity of the function over the given interval.
y=x^2+2x, [2,7]

Answer 1

you have to say what the function is, is it a function of position or velocity?

Answer 2

that is the interval [2,7]

Answer 3

y=x^2 +2x is the function

Answer 4

Change of y over the change of x

Answer 5

\[\frac{y_2-y_1}{x_2-x_1}\]

Answer 6

so its like finding the slope

Answer 7

it is exactly that you are finding the slope of the line that goes through the points (2,f(2)) and (7,f(7)) on the curve