What are the coordinates of the point where the x-axis and the y-axis intersect on a coordinate plane?

They're called the x-intercept, which is where the line crosses the x-axis, and the y-intercept, which is where the line crosses the y-axis. When finding the x-axis the y coordinate needs to be 0, and when finding the y-intercept, the z coordinate must be o.

Step-by-step explanation:

b. x- 48 =120

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."