Select "yes" or "no" to indicate whether the ordered pair is on the graph of the function f(x)=−25x+1 ordered pairs: yes no (1,625) (0,−25) (−1,−1)

No, yes, yes

Step-by-step explanation:

Given graph is of the function

To check whether the given pairs lie on the graph, we can substitute and check whether the point satisfies the equation of f(x)

(1,625)

Substitute 1 for x and 625 for y=f(x)

Left side = 625 and right side =

Not equal hence no.

2) (0,-25)

Substitute 0 for x and -25 for y=f(x)

Left side = -25 and right side =

Equal hence yes.

3) (-1,-1)

Substitute -1 for x and -1 for y=f(x)

Left side =-1 - and right side =

Equal hence yes.

i am chris from the united states i have skill in math and i am here to evryone

- "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."