Then determine the
slope. Use the rise
over run method to
do so. The equation
for finding the slope
would actually be
y2-y1/x2-x1. Plug in
the numbers and
you get 15-3 divided
by 7-1. The result of
this is 12/6 which
simplifies to 2.
First determine the
ordered pairs for the
reasons which
would be (1, 3) and
(7, 15)
Multiply the slope to the x in the ordered pair. With that given
answer solve for the given b in the equation. Plugging in 2 for
the first ordered pair and you receive 2. The y is 3 so you
subtract 2 from both sides to receive 1. Plugging in 2 with the x
in the next ordered pair gives you 14. Subtracting 14 to both
sides gives you the answer of 1 as well for b. Then you receive
the answer to the full equation which is y=2x=1.
Plug in 11 for the x in the
equation. You receive 22 after
multiplying 11 by the slope of
2. Then add 22 with 1 to
receive the final answer of 23.