Question

How can i find a form for y= mx + b using (200, 100) and (50,25)

Answer 1

The answer is

`y = (7)/(2)x - 600`

Explanation:

Formula:

`y = mx + b`

We first need to find the slope:

`m = (25 - 200)/(50 - 100) = ( - 175)/( - 50) = (7)/(2)`

Now we need to find the y-intercept:

y = mx + b (substitute)

100= 7/2(200) + b

100 = 700 + b

-700=-700

-600 = b

Using the information we now have:

`y = (7)/(2)x \: - 600`

Answer 2

The slope intercept is y=0.50x+0.00