Posted by Preston on Tuesday, September 14, 2010 at 9:25pm.
Determine the equations of the following
(a) having slope ¡1 and passing through (0; 2)
(b) parallel to y=2x-1 and passing through (¡2; 0)
(c) passing through (1; 0) and (¡1; 3)
(d) with x-intercept 6 and y-intercept 3.
- Calculus - Preston, Tuesday, September 14, 2010 at 9:59pm
I have no clue where to begin.
- Calculus - TutorCat, Tuesday, September 14, 2010 at 10:13pm
where m=slope and b=y-intercept
(a)m=1, x1=0, y1=2
(b)since it's parallel, we know that the slopes are equal; m=2
(d)since x-intercept is equal to 6, we know (6, 0). since y-intercept is equal to 3, we know (0,3).
Find the slope: m=(y1-y2)/(x1-x2)
Plug into slope and one of the two coordinates: y-y1=m(x-x1)+b
- Calculus - Preston, Tuesday, September 14, 2010 at 10:22pm
Thanks so much helps a lot.
- Calculus - MathMate, Tuesday, September 14, 2010 at 10:47pm
Preston, check if the slope shouldn't be
"(a) having slope ¡1 and passing through (0; 2) "
Your computer seems to have a problem getting the negative sign.
- Calculus - Preston, Tuesday, September 14, 2010 at 11:00pm
yea it is having trouble. thanks again. i am just stuck on my other one now
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