Let f be a linear function such that f(1)=5 and f(3)=9. find an equation for f(x)

Step-by-step explanation:

First, we can find the slope of the line.

Using the equation, we can solve for b

Let's see if works

It checks out!

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33