In 1980, median family income was about $16,000, an in 2000 it was about $42,000.
a) Find the slope of the line passing through the points (190,16000) and (2000, 42000).
b) Intercept the slope as a rate of change.
c) If this trend continues, estimate the median family income in 2003.

Please help me and show me how to do this.

Question

In 1980, median family income was about $16,000, an in 2000 it was about $42,000.
a) Find the slope of the line passing through the points (190,16000) and (2000, 42000).
b) Intercept the slope as a rate of change.
c) If this trend continues, estimate the median family income in 2003.

Please help me and show me how to do this.

anonymous · Answer

ok, just give me a minute

anonymous · Answer

$$(190,16000) and (2000,42000)$$

anonymous · Answer

this is your given slope, ok

anonymous · Answer

then

anonymous · Answer

$$P1(190,16000) P2(2000,42000) that is P=point $$

anonymous · Answer

the formula for the slope or any slope is

anonymous · Answer

y2-y1/x2-x1

anonymous · Answer

then you just plug in those nubers

anonymous · Answer

P1(190,16000) P2(2000,42000)
       x1     y1              x2     y2

anonymous · Answer

y2-y1=42,000-16000
               y2           y1

anonymous · Answer

and x2-x1=2000-190
                      x2    x1

anonymous · Answer

you subtract exactly what is on the equation

anonymous · Answer

42,000-16000 is 41840 and 2000-190 is 1810

anonymous · Answer

m=41840/1810 is m=32.11

anonymous · Answer

this is your slope of the line

anonymous · Answer

m=32.11

anonymous · Answer

m=y2-y1/x2-x1 witch is m=42,000-16000/2000-190