Question

In 1980 median family income was about 16,000 and in 2000 it was 40,000
A. find the slope of the line passing through the points (1980, 16,000) and (2000, 40,000)
B. Interpret the slope rate change
C. if the trend continues estimate the median family income in 2005$ ???

Answer 1

Slope =(y2-y1)/(x2-x1)

Answer 2

does it help?

Answer 3

thinking

Answer 4

would it be 1980/16000 and 2000/40000

Answer 5

I meant 16000/1980 and 40000/2000

Answer 6

Since the points are (1980, 16,000) and (2000, 40,000)
here slope = (40000-16000)/(2000-1980)

Answer 7

(24,000) (20)

Answer 8

so does m=( 24,000, 20)

Answer 9

So, slope = 1200

Answer 10

what is the rate change?

Answer 11

thats the rate change

Answer 12

1200

Answer 13

k I got it. so you divided 24000 by 20 right??

Answer 14

right