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Graph functions

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Graph the following functions. y=2x-1
y=(-3/4)x+5
y=x^2-4
y=3x^2-6x-5
Label each axis and all intercepts

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Solution Summary

Label each axis and all intercepts.

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y=2x-1 is a linear function. So its graph is a straight line that crosses the axes at:
x-intersept: set y to zero and solve the equation for x: 0 = 2x-1, 2x = 1, x = 1/2
y=-intercept: set x to zero and solve the equation for y: y = 2*0-1 = -1.
And since the have two points along the line, we can immediately draw the line ...

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