This is adding linear equations: 1. (–6x + 3) + (5x – 4)
2. (–2x + 10) + (–8x – 1)
3. (–4x + 6) + (x – 5)
4. (1.3x + 2.4) + ( –6.1x – 3.2)
5. (0.5x – 0.6) + (0.75x – 0.1)
6. (–7x – 14) + (x – 6)
7. (9x + 7) + (x + 3)
8. (4x – 1) + (–5x + 17)

I honestly just need help, so you can just do one of any problem on here, then I'd just need it to be explained and answered so that I understand

- "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."

a rotation about point l

step-by-step explanation:

quizlet