Question 1195106
Graphically determine the solution to the systems

1. y=2x^2-12x+19,y=2x-1
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For the parabola y = 2x^2-12x+19, pick values for x and find y.
Plot the points and draw the curve thru them.
y = 2x-1 is a straight line, so 2 points are needed
The intersections are the solutions.
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There are several FREE graph softwares online.
I use www.padowan.dk
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2. y=x^2-2x+8,y=x-7
Same as #1
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3. y=x^2+5x-7, y=2x^2=2x+3
If you meant x^2+5x-7, y=2x^2-2x+3 it's 2 parabolas.