Writing An Equation For A Line
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ex: m = -4, b = 0 |
(Your goal is to make an equation out of the m and b given) |
| m = slope = -4 b = Y-int. = 0 |
(m stands for slope and b stands for the Y-intercept) |
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| Slope Intercept Form | |
| Y = -4x + 0 | (This is the positioning for a standard line in Slope Intercept form. Y=mx+b) |
| Y = -4x | (The 0 is irrelevant and has been taken off for your answer) |
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| Standard Form | |
| 4x + Y = 0 | (This is the positioning for a standard line in Standard Form. The X infront can't have a fraction nor can it be negative.) |
| Y = -4x + 0 | (when preparing to graph it remember that it properly graphs like this) |
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| Point Slope Form | |
| Y - 0 = -4( X - 0) | (This is the positioning for a standard line in Point Slope Form. This is a great way of taking the m and the b and figuring out the Slope Intercept Form or Standard Form for any line.) |
| Y = -4x + 0 | (After simplyfying it you get the basic Slope Intercept Form) |
| 4x + Y = 0 | (Taking the -4x to the other side gives you the Standard Form of the line) |