Question

Write an equation in slope intercept form of the line that passes through (4, 1) and (5, -1).


y = -4x + 1

y = -2x + 9

y = 4x + 1

y = -1/2 x + 9

Answer 1

First find the slope between the two points

Answer 2

\[\Large slope=m=\frac{ y_2-y_1 }{ x_2-x_1}\]

Answer 3

-2

Answer 4

for the slope @doulikepiecauseidont

Answer 5

OK, now we have an equation called point-slope formula. All you need is a point on the graph (we have two so we can pick one) and we also need the slope of the linewhich we found to be -2

\[\Large y-y_1=m(x-x_1)\]
Where
y & x don't change
(x_1, y_1) are one of the points
m=slope

Answer 6

so y = -2x + 9

Answer 7

Correct, good job!