Find the values of k and b if it is known that the graph of y=kx+b goes through points (2, 10) and (−7, −10)

Question

please find Find the values of k and b

Answer 1

k = slope = (-10 - 10)/(-7 - 2) = -20/-9 = 20/9

 

10 = (20/9)(2) + b

 

b = 10 - 40/9 = (90 - 40)/9 = 50/9

 

k = 20/9

b = 50/9

 

Test the answers.