SOLUTION: I feel really stupid asking this basic question but I am having problems understanding how to solve an equation for Y so I can grap[h and figure slope intercept. as an example I wi

Question 84288This question is from textbook finite mathmatics
: I feel really stupid asking this basic question but I am having problems understanding how to solve an equation for Y so I can grap[h and figure slope intercept. as an example I will use
2X + 5Y - 3 = 0
If I wanted to solve the equation for Y to graph the line, how do I do this. I have been away from math for over 30 years now and am returing to college. I dont remember any of this and am having problems getting the idea. PLEASE help in any way possible.
Miller This question is from textbook finite mathmatics

Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
2X+5Y-3=0 YOU NEED TO CHANGE THIS EQUATION TO THE LINE EQUATION FORM Y=mX+b WHER m=SLOPE & b=Y INTERCEPT.
2X+5Y-3=0
5Y=-3X+3 NOW DIVIDE BOTH SIDES OF THE EQUATION BY 5 THUS:
Y=-3X/5+3/5 NOW YOU HAVE A SLOPE (m)=-3/5 & THE Y INTERCEPT (b)=3/5 or the point (0,3/5).
THE GRAPH FOLLOWS: (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = -3x/5 +3/5).
sometimes it helps to find the x interceopt also by setting y=0 & solving for x thus:
5*0=-3x/5+3/5
-3x/5=-3/5 now divide both sides by -3/5:
x=1 or the point (1,0)

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