Question 256953
We have coordinates here:
(2.75, 250) and (3.0, 350)
step 1 - find the slope using
{{{m = (y2-y1)/(x2-x1)}}}
putting our coordinates in, we get
{{{m = (350-250)/(3-2.75)}}}
{{{m = 100/.25}}}
{{{m = 400}}}
step 2 - find b using y = mx + b as
{{{y = mx + b}}}
{{{350 = 3*(400) + b}}}
{{{b = -850}}}
the equation of the line is
{{{y = 400x - 850}}}
Now let x = 2.82. We get
{{{y = 2.82*400 - 850}}}
{{{y = 278}}}