Question

The winning times for the​ 200-meter dash can be approximated by

​f(x)=−0.05783x+147.7​, where x is the year.

What is the slope of f?

Answer 1

The slope of f is m= -0.05783.

Explanation:

Given : The winning times for the​ 200-meter dash can be approximated by
`f(x)=-0.05783x+147.7` , where x is the year.

To find : The slope of f

Solution : Using slope intercept form a linear function is represented as

`y=mx+b`

where, m is the slope and b is the y-intercept.

We can write the function as
`y=-0.05783x+147.7`

Comparing with slope intercept form,

m= -0.05783 and y-intercept = 147.7

Therefore, The slope of f is m= -0.05783.