8. A(-3, 8), B(3, 2), C(7, 1), D(5, -1) Slope of AB, Slope of CD,
Types of Lines
9. A(5, -8), B(-2, -10), C(-6, -13), D(-2, 1)
Slope of AB, Slope of CD,
Types of Lines
10. A(-4, 7), B(-2, 6), C(2,-2), D(-8, 3)
Slope of AB, Slope of CD,
Types of Lines
11. A(0, -2), B(0, 7), C(3,-5), D(6,-5)
Slope of AB, Slope of CD,
Types of Lines
12. A(3, 1), B(3,-4), C(-4,1), D (-4,5)
Slope of AB, Slope of CD, Types of lines

- "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."

what are you trying to solve here

step-by-step explanation:

x = 3 ± √(5+y)