Question

What is the function of (7,4), (6,3), (5,2)

Answer 1

`f(x) = x - 3`

Explanation:

Linear equation form:

`y=mx+b`

m is the slope

b is the y intercept

Solve for m using the first two points:

`m=(y2-y1)/(x2-x1)`

`m=(6-7)/(3-4)`

`m=(-1)/(-1)`

`m=1`

Plug in m and either point into the equation and solve for b:

`y=mx+b`

`4=1(7)+b`

`4=7+b`

`b=4-7`

`b=-3`

Final equation:

`y=x-3`

Test with the 3rd point:

`2=5-3`

`2=2`

Equation fits all 3 points

Answer 2

the function is -3 i think