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Draw a straight line through the point ( y = -3 ) on the y-axis, and with a slope of 5.
y = 5x3 + 5 is a cubic equation. You cannot solve for x (or y), because there are two variables and only one equation. If you graph this, however, you will see a curve that passes through all possible points that make this equality true.
y = 5x3 + 6 is a cubic equation, not a linear equation. Linear equations contain only terms of degree 0 (i.e. constants) and terms of degree 1.
The graph shifts downward (negative y) by 9 units.
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y = -4x The y-intercept is zero. That is, the graph passes through the origin.