Russell's Really Neat Problems
Solving A Linear Equation
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Y=3x+3
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Here is the equation
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Y=3x+3
-3 -3
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Subtract 3 from both sides of the equation
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-3=3x
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This is the result
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-3=3x
3
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Divide both sides by 3
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-1=x
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The value of x
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Solving A Literal Equation
(area of a trapezoid)
A = (b1 + b2) h
2
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Solve for b2
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2A = (b1 + b2) h
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Multiply both sides by2
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2A = b1 + b2
h
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Divide both sides by h
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2A - b1 = b1 + b2 - b1
h |
Subtract b1 from both sides
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2A - b1 = b2
h |
Combine like terms
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How To Find Slope!
(Y2-Y1)
(X2-X1)
(12-8)
(6-2)
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First you plug in the coordinates
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4
4
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Then you subtract the plugged in numbers
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1
1
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Then you simplify
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1
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Your slope
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