Branches of Math
Recent Math Questions
Sunday, December 1, 2013 at 5:22pm
How do you do an equation of line perpendicular through y-intercept?
Sunday, December 1, 2013 at 5:20pm
Math - Algebra 2
I have tried several times to solve this. I have 3 points (0,-5), (3, -6), (-3,-7). I'm trying to get the quadratic equation. I keep getting y=(-1/6)x^2+ (1/6)x +0. When i plug in other numbers to check it's not the parabola facing down like my image. Please help!
Sunday, December 1, 2013 at 4:54pm
y = |x^4 - 5x^2 + 4| = | (x^2 - 4)(x^2 - 1) | = | (x+2)(x-2)(x+1)(x-1) | I graphed it on Wolfram http://www.wolframalpha.com/input/?i=plot+y+%3D+%7Cx%5E4+-5x%5E2+%2B4%7C%2C+-3%3C+x+%3C+3 Notice that there are cusps at the zeros of the corresponding non-absolute ...
Sunday, December 1, 2013 at 3:15pm
(b^1/3)^3/5 b^1/3*3/5 = b^1/5
Sunday, December 1, 2013 at 2:59pm
(20 * 18) + 30 = 390 minutes = 6.5 hours What time do you think the turkey should go in the oven?
Sunday, December 1, 2013 at 2:57pm
2y -x = 6 2y = x +6 y = x/2 + 3 slope is 1/2
Sunday, December 1, 2013 at 2:11pm
y = mx + b 8 = 4/3(3) + b 8 = 4 + b 4 = b y = 3x/4 + 4
Sunday, December 1, 2013 at 2:03pm
1. 8 * 5 = n I'll be glad to check your answers.
Sunday, December 1, 2013 at 1:53pm
you know the parallel line also has slope -2, so using the point-slope form, that is (y-0) = -2(x-2) ....................... the perpendicular line has slope -1/(-2) = 1/2 Figure the y-intercept and you again have a point and a slope.
Sunday, December 1, 2013 at 12:21pm
math(adding mixed fractions)
None of your answers is correct. Please post your work for one of the problems. I may be able to show you what you're doing wrong.
Sunday, December 1, 2013 at 11:02am