Miss Johnson walks at a rate of 2 miles per hour x = hour and y = miles walked the Constant of proportionality is 2 show these plots on a graph

Question

Miss Johnson walks at a rate of 2 miles per hour x = hour y = miles walked. The constant of proportionality is 2. Show these plots on a graph.

Answer 1

distance = speed times time

y = kx where y = miles and x = hours, k = 2 mph

(x,y) = (x,2x) or (y/2, y)

points on a graph are

(1,2), (2,4), (3,6), ...points on a straight line through the origin

all falling on a line with the equation y= 2x

plot hours on the x axis and miles on the y axis

the line has a slope of 2 and y intercept = (0,0)