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 Algebra Pre-Algebra and Basic Algebra Math Forum

 March 9th, 2019, 04:29 AM #1 Newbie   Joined: Mar 2019 From: Arizona Posts: 1 Thanks: 0 Put these in the form y=mx+c? Put these in the form y=mx+c as not sure how to do this? 6x-5=2y 4x+2y=7 3y=4x+6 000 3x-7=6y 3x+3y=6 7y+6x=60 000 Many thanks xx March 9th, 2019, 04:50 AM #2 Math Team   Joined: Jul 2011 From: Texas Posts: 3,016 Thanks: 1600 $ax + by = c$ $by = -ax + c$ $y = -\dfrac{a}{b} x + \dfrac{c}{b}$ Thanks from topsquark June 22nd, 2019, 06:04 PM #3 Newbie   Joined: Jun 2019 From: New York Posts: 23 Thanks: 0 Hello Desagni, this was what I found for the 6 equations and turned it into slope formula. 1) 6x-5=2y slope formula is: Y=3x-(5/2) 2) 4x+2y=7 slope formula is: Y=-2x + 7/2 3) 3y=4x+6 slope formula is: Y= (4/3)x +2 4) 3x-7=6y slope formula is: Y= (1/2)x-(7/6) 5) 3x+3y=6 slope formula is: Y= -x+2 6) 7y+6x=60 slope formula is: Y= (-6/7)x + (60/7) The idea Desagni is rearranging the equation to fit the slope formula which is y=mx+b. This should help. Let me know if you have any questions. June 23rd, 2019, 07:30 PM   #4
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Quote:
 Originally Posted by NinjaX3 … I found for the 6 equations and turned it into slope formula … … The idea … is to fit the slope formula which is y=mx+b …
Hi. Actually, the idea is to solve the given equations for y. That doesn't require using the slope formula.

You're using the wrong name for the form y=mx+b. That's called the Slope-Intercept form because it shows both the slope (m) and the y-intercept (0,b).

Here is the Slope Formula; we use it to calculate the slope when we have coordinates of two points on the line (x1,y1) and (x2,y2).

m = (y2 - y1)/(x2 - x1)

Quote:
 Originally Posted by NinjaX3 1) 6x-5=2y slope formula is: Y=3x-(5/2) 2) 4x+2y=7 slope formula is: Y=-2x + 7/2 3) 3y=4x+6 slope formula is: Y= (4/3)x +2 4) 3x-7=6y slope formula is: Y= (1/2)x-(7/6)
Here's a couple notes about notation, Ninja. We don't need grouping symbols around some values of b. Technically, it's not wrong to type them, but they don't really do anything, above. However, it is good form to not switch back and forth between using symbols Y and y. Those are different symbols, in math, so pick one or the other and use it consistently. Cheers  June 23rd, 2019, 08:42 PM #5 Member   Joined: Oct 2018 From: USA Posts: 89 Thanks: 61 Math Focus: Algebraic Geometry This website is equipped with a $\LaTeX$ translator so that you can use the fancy math typesetting you see in Skeeter's post in this thread. You both may find it useful. See (http://www.docs.is.ed.ac.uk/skills/d.../3722-2014.pdf) Chapter 6 for the basics. as an example: $\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}$ Thanks from topsquark July 4th, 2019, 06:27 AM #6 Newbie   Joined: Jun 2019 From: New York Posts: 23 Thanks: 0 Thank you I will fix that and be consistent. Tags form, put, ymx Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post frogboy Algebra 3 May 21st, 2017 04:03 AM abc98 Algebra 10 September 20th, 2015 05:49 PM PerfectTangent Algebra 2 February 25th, 2014 09:18 PM balbasur Algebra 3 July 18th, 2010 06:12 PM Wojciech_B Linear Algebra 0 December 7th, 2009 01:52 PM

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