SOLUTION: find the rate of change between the two points. give the units of measure for the rate. (4,10) and (6,15); x in minutes, and y in miles

Algebra ->  Graphs -> SOLUTION: find the rate of change between the two points. give the units of measure for the rate. (4,10) and (6,15); x in minutes, and y in miles       Log On


   

Question 71522: find the rate of change between the two points. give the units of measure for the rate.
(4,10) and (6,15); x in minutes, and y in miles
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
THE SLOPE OF A LINE THROUGH THESE POINTS IS
(15-10)/(6-4)
5/2=2.5 THEREFORE FOR EVERY 2.5 MILE (Y) IT TAKES 1 MINUTE.
SOLVING FOR THE Y INTERCEPT(b)
15=2.5*6+b
15=15+b
b=0
Y=2X/5
+graph%28+400%2C+400%2C+-20%2C+20%2C+-20%2C+20%2C+y+=+2x%2F5%29+ (graph 400x400 pixels, x from -20 to 20, y from -20 to 20, y = 2x/5).