Ihave to find a few equivalents the algebraic expression -4n+6 and my teacher gave me a few examples: -2x+4 and -2x+2 so i can't use those. any ideas?

answer:

-2n+3

-3x+5

step-by-step explanation:

divide by two on each side

subtract one from each side

the answer to the question is a  

it has the same slope and the same y-intercept.

- "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."