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| Mr. Algebra, How do you find the equation of a line using the slope and a point? | |
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| Ok, You already know what M is, so you just need to find B (Y-Intercept) To solve for B, Distribute M and the point into the Slope Intercept form Y=Mx+B. | |
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Distribute Point and Slope into the Equation
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| If our point was (4,3) and a slope of -2, the equation would be 3=(-2)(4)+B. Then solve (-2)(4), which gives you -8. Inorder to have B by itself, add -8 on both sides | |
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After Finding B, Distribute M and B.
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| After you added -8 on both sides, your equation should have turned into 11=b. There, you got your B. Then rewrite the equation, distributing the M and B. Your equation should be Y=-2x+11. | |
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