Question 1188541
Find the slope of the line through each pair of points, then graph
(19,-16),(-7,-15)
:
x1=19, y1=-16
x2=-7, y2=-15
:
Find the slope using the formula: m = {{{(y2 - y1)/(x2-x1)}}}
m = {{{(-15 - (-16))/(-7 - 19)}}}
m = {{{(-15 + 16)/-26}}}
m = {{{1/-26}}}
:
Use the point slope formula: y - y1 = m(x - x1)
y - (-16) = {{{-1/26}}}(x - 19)
y + 16 = {{{-1/26}}}x + {{{19/26}}}
y = {{{-1/26}}}x + {{{19/26}}} - 16
y = {{{-1/26}}}x + {{{19/26}}} - {{{416/26}}}
y = {{{-1/26}}}x - {{{397/26}}}
:

Graph this in the above equation by substitution with the given values, it should look like this
{{{ graph( 300, 200, -20, 20, -20, 5, (-1/26)x-(397/26)) }}}