Write an equation in slope-intercept form of the line with the given slope and point: slope = 3 and (1, -2).

Question

anonymous · Answer

y-y1=m(x-x1)

anonymous · Answer

m=3
x1=1
y1=-2

anonymous · Answer

substitute in the numbers

mokeira · Answer

|dw:1408386227577:dw|

anonymous · Answer

Write an equation in slope-intercept form for the line shown.

anonymous · Answer

NO idea how to do the equation with graph

anonymous · Answer

what is the y-intercept?

anonymous · Answer

-4?

anonymous · Answer

yes now do you know how to find slope on a graph?

anonymous · Answer

no

anonymous · Answer

My course doesn't explain it very well, it's frustrating me.

mokeira · Answer

lol....you have been given two points, now just find the slope|dw:1408386526846:dw|
can you continue from there?

anonymous · Answer

$$\frac{ y2-y1 }{ x2-x1 }$$
you're given 2 coordinates

mokeira · Answer

$$slope=\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }$$

anonymous · Answer

2,-1
0,-4
x1=2
y1=-1
x2=0
y2=-4

anonymous · Answer

y = 3/2 x - 4?

anonymous · Answer

$$\frac{ -4+1 }{ 0-2 }$$
yup :)

anonymous · Answer

Sweet, thank you both, learning more in 5 minutes from here than my whole section that is attempting to teach this.

anonymous · Answer

wait until you get into calculus :) thatll be fun

anonymous · Answer

Not looking forward to it D:

anonymous · Answer

It's semi easy quadratic formula took me 2 hours to understand it but im also still in algebra