Question 31308
If the form of the equation is {{{y = m*x + b}}}, then
m is the slope. {{{y = 5*x + 7}}} m = 5 That is the slope
----
It crosses where x = 0. x = 0 is the definition of the y-axis
{{{y = 5*0 + 7}}}
{{{y = 7}}}
That is where the line crosses the y-axis.
-----
(0,500) is the y-intercept as an ordered pair
It's (x,y), and x is always 0 at the y-intercept
That's how you find it- you make x = 0.
------
Find the slope between the two points (1, 5) and (0, 0)
the slope is defined as
{{{m = (y[2] - y[1]) / (x[2] - x[1])}}}
Just match up (x[1], y[1]) and (x[2], y[2])
with (1, 5) and (0, 0)
the slope is defined as
{{{m = (0 - 5) / (0 - 1)}}}
{{{m = -5/-1}}}
{{{m = 5}}}