Circumstance and area of circle with radius of 7in

= 2 x 22/7 x 3.5 (∏ = 22/7)

= 22 inches.

Using the point-slope form:

The equation of the line is given by:

.....[1]  where

m is the slope of the line and is the point on the line.

As per the statement:

Given: Two points i,e (34, 76) and (42, 91)

First calculate slope(m):

Slope is given by:

Substitute the given values we have;

Now, substitute the value of m and (34, 76) in [1] we have;

Using distributive property:

Add 76 to both sides we get;

Therefore, the equation of the trend line is: