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Question 92837: How do you Find the slope and y-intercept of each equation? Then graph.
1.) y=x+2 9.) y=-x-2 17.) y=4/5x+2
2.) y+3=-1/3x 10.) y-6=-2x 18.) y-3/4x=-5
3.) y=2x-1 11.) y=-5x-2 19.) y=-6
4.) y-3/5x=-1 12.) y+x=0 20.) y-3=-2/3x
5.) y=1/2x-4 13.) y+4=2x 21.) y=-7/4x+6
6.) y-2x=-3 14.) y=-5x+5 22.) y+3x=6
7.)y=2/5x+3 15.) y=-4+x 23.) y+1/5x=-2
8.) y+1/3x=-2 16.) y=-4x 24.) y= 3/7x
Please answer these for me. I don't know how to do any of them.
Answer by checkley75(3666)   (Show Source):
You can put this solution on YOUR website! USING THE LINE FORMULA [Y=mX+b] WHERE m=SLOPE & b=Y INTERCEPT
1) y=x+2 THIS EQUATION HAS A SLOPE (m)=1 & A Y INTERCEPT (b)=2.
TO PLOT THIS LINE SOLVE THE LINE EQUATION BY SETTING Y=0 & SOLVE FOR X THEN SET Y=0 & SOLVE FOR Y. THUS
0=X+2 OR X=-2 (-2,0)
Y=0+2 OR Y=2 (0,2)
NOW PLOT THESE 2 POINTS & DRAW A STRAIGHT LINE THROUGH THEM.
 (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = x +2).
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I'LL DO ONE MORE FOR YOU THEN YOU'RE ON YOUR OWN. WE ARE HERE TO TEACH YOU HOW TO SOLVE ALGEBRA/GEOMETRY PROBLEMS. WE ARE NOT HERE TO DO YOUR HOMEWORK. THAT'S YOUR TASK ONCE WE SHOW YOU HOW TO SOLVE THE SPECIFIC PROBLEM(S).
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Y+3=-1/3X
Y=-1/3X-3 HERE WE HAVE A SLOPE(m)=-1/3 & A Y INTERCEPT (b)=-3.
0=-x/3-3 or -x/3=3 or-x=9 or x=-9 (-9,0)
y=-0/3-3 or y=-3 (0,-3)
 (graph 300x200 pixels, x from -10 to 5, y from -10 to 10, y = -x/3 -3).
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IN THE FUTURE I SUGGEST YOU SUBMIT ONE OR TWO PROBLEMS. YOU'LL PROBABLY GET A QUICKER RESPONSE.
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