Write and graph exponential functions to model the number of students at school A and at school B as a function of number of years. In about how many years will the number of students at both schools be approximately the same? Explain how you can use a graph to determine the answer school A:240 decreasing at an annual rate of 2%
school B:180 increasing at an annual rate of 3%

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

step-by-step explanation:

3+x

step-by-step explanation: