leetalyoung2 leetalyoung2
  • 12-03-2018
  • Mathematics
contestada

find the value of r so that the line passes through (1,2) and (5,r) has a slope of -8

Respuesta :

mdlemuslopez
mdlemuslopez mdlemuslopez
  • 12-03-2018
The answer is -30. 

1. Plug in the points into the formula. m=y2-y1/x2-x1

2. Simplify

3. Multiply both sides by 4, you will get r-2=-32

4. Solve for r 

5. You can double check to see if you got the same slope

Done!
Answer Link

Otras preguntas

Need help!! You can buy 10 yogurts for $6.50. How much would it cost for nine yogurts!?
Which portion of the electromagnetic spectrum is used in a television? a) infrared waves b) X rays c) radio waves d) gamma waves
Help me Check it for me
How did the British planed to win the war?
PLEASE HELP RIGHT AWAY!!!!!
The graph here shows the carrying capacity for two populations of salmon living in different ecosystems. Which of these is most likely to be more plentiful in a
Need help!! You can buy 10 yogurts for $6.50. How much would it cost for nine yogurts!?
angle S is 90 degrees and angle T is 45 degrees. side ST is 3 ft. how long is side SU
A solution of 20.0 g of which hydrated salt dissolved in 200 g H2O will have the lowest freezing point?(A) CuSO4•5H2O(M=250)(B) NiSO4•6H2O(M=263)(C) MgSO4•7H2O(
Please help me on number 2!!!!!!!!!