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Question 173653: I need help with all these equations, Please!
Plot the graph of 3x + 15 = x + 25
Plot the graph of 4x – 3y = 10
Plot the graph of y4 + 3y2 -4 = 0
Plot the graph of 3x2 + 5 + 7x
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Plot the graph of 3x + 15 = x + 25
2x = 10
x = 5
Draw a vertical line thru all the points where x = 5
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Plot the graph of 4x – 3y = 10
Solve for y: y = (4/3)x - (10/3)
You need two points:
Let x = 0 then y = -(10/3) giving point (0,-10/3)
Let x = 3 then y = 4-10/3 = 2/3 giving point (3,2/3)
Plot the two points and draw a line thru them.
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Plot the graph of y^4 + 3y^2 -4 = 0
Factor: (y^2+4)(y^2-1) = 0
True if y = 1 or -1
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Plot the graph of 3x2 + 5 + 7x
Is this supposed to be y = 3x^2+7x+5 ?
If it is, the graph is a parabola that opens up (instead of down).
The bottom point (vertex) is at (-7/6,0.91)
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Cheers,
stan H.
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