Zombii
Write an equation in point-slope form for the line that passes through one of the following pairs of points (you may choose the pair you want to work with). Then, use the same set of points to write the equation in standard form and again in slope-intercept form. (5, 1), (–3, 4)
Delete
Share
This Question is Closed
karatechopper
Best Response
You've already chosen the best response.
0
Ok. Well lets start by asking you this, do you know how to find the slope between two points?
Zombii
Best Response
You've already chosen the best response.
0
No not exactly..
savvers
Best Response
You've already chosen the best response.
1
ok first off we need to use y2-y1/x2-x1 and its easy to figure out using it
Zombii
Best Response
You've already chosen the best response.
0
Ok. Thanks, I'll try to figure this out.
savvers
Best Response
You've already chosen the best response.
1
and that formula is used to find out the slope
laihei
Best Response
You've already chosen the best response.
0
This one will be a negative slope as well.
savvers
Best Response
You've already chosen the best response.
1
point slope form is y-y1=m(x-x1) but we have to figure out the slope intercept form first for this one
savvers
Best Response
You've already chosen the best response.
1
and then when you got both of these 2 then its easy to figure out standard form
Zombii
Best Response
You've already chosen the best response.
0
would the fraction be 2/5?
savvers
Best Response
You've already chosen the best response.
1
let me check
savvers
Best Response
You've already chosen the best response.
1
umm no its going to be -3/8
Zombii
Best Response
You've already chosen the best response.
0
How did you solve that?
savvers
Best Response
You've already chosen the best response.
1
using y2-y1/x2-x1
Zombii
Best Response
You've already chosen the best response.
0
Ok, I got it now.
Zombii
Best Response
You've already chosen the best response.
0
So now what?
savvers
Best Response
You've already chosen the best response.
1
now we have the slope we figure out slope intercept form and you have to use graph paper for that
savvers
Best Response
You've already chosen the best response.
1
plot both points and run a line through them
savvers
Best Response
You've already chosen the best response.
1
and slope-intercept form is y=mx+b where m is the slope and b is the y intercept
Zombii
Best Response
You've already chosen the best response.
0
Can you help me out with that please?(:
savvers
Best Response
You've already chosen the best response.
1
use graph paper and see what you get :)
Zombii
Best Response
You've already chosen the best response.
0
How do I graph it?
savvers
Best Response
You've already chosen the best response.
1
ok take a peice of graph paper and make a large "+" in it and number the lines with 1's or 2's
Zombii
Best Response
You've already chosen the best response.
0
Ok
savvers
Best Response
You've already chosen the best response.
1
but if number it with 1's you have to go like this 1,2,3,4,5 and so on and with 2's: 2,4,6,8 and so on
Zombii
Best Response
You've already chosen the best response.
0
Got it
savvers
Best Response
You've already chosen the best response.
1
like this
Zombii
Best Response
You've already chosen the best response.
0
Ok I drew one.
savvers
Best Response
You've already chosen the best response.
1
now did you plot both points on the graph?
Zombii
Best Response
You've already chosen the best response.
0
Yes
savvers
Best Response
You've already chosen the best response.
1
now go through the line until you see the line go through the "y" line
savvers
Best Response
You've already chosen the best response.
1
x is the horizontal line on the "+" and y is vertical line of the "+"
Zombii
Best Response
You've already chosen the best response.
0
It passes through the Y line at 3.
savvers
Best Response
You've already chosen the best response.
1
yep
savvers
Best Response
You've already chosen the best response.
1
now you got your slope intercept form and point slope form: y=-3/8x+3 and y-1=-3/8(x-5)
savvers
Best Response
You've already chosen the best response.
1
now standard form is left
savvers
Best Response
You've already chosen the best response.
1
well i got to go i hope you can figure this out