Which of the following will give you the incorrect slope?
a: y2-y1 b: y2-y1 c: y1-y2 d: rise

x2-x1 x1-x2 x1-x2 run

The correct option is B.

Step-by-step explanation:

The slope of a line represents the change in variable y with respect to x.

If a line passes through two point and , then the slope of the line is

It can be written as

Cancel the negative sign.

Since , therefore these formulas give you the correct slope.

This formula will give you the incorrect slope.

Therefore the correct option is B.

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

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."