A runner covers the last straight stretch of a race in 3 s. During that time, he speeds up from 5 m/s to 11 m/s. What is the runner's acceleration in this part of the race? ​

From first Newton's equation of motion:

Substitute the variables:

Acceleration is 2 ms-²

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.