SOLUTION: It cost maurice $102 to buy refreshment for 6 people. It cost Sue $162 to buy refreshment for 10 people at the same restaurant. write the linear equation of the line that would pas

Algebra ->  Linear-equations -> SOLUTION: It cost maurice $102 to buy refreshment for 6 people. It cost Sue $162 to buy refreshment for 10 people at the same restaurant. write the linear equation of the line that would pas      Log On


   

Question 127410: It cost maurice $102 to buy refreshment for 6 people. It cost Sue $162 to buy refreshment for 10 people at the same restaurant. write the linear equation of the line that would pass throught (6,102) and (10,162)
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
(162-102)/(10-6)=60/4=15 this is the slope.
102=15*6+b
102=60+b
b=102-60
b=42 answer for the y intercept.
y=15x+42 is the line equation.
+graph%28+300%2C+300%2C+-6%2C+15%2C+-10%2C+50%2C+15x+%2B42%29+ (graph 300x300 pixels, x from -6 to 15, y from -10 to 50, 15x +42).