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Earn +20 ptsQ: What is 2y when y equals 8?
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Y intercept of 2y equals -6x plus 8?
2y = -6x + 8 The y intercept occurs when x = 0 2y = 8 therefore y = 4
What is the value of y if 5y plus 8 equals 7y?
5y+8=7y 2y=8 y=4
What is the slope of 4x plus 2y minus 8 equals 0?
4x+2y-8=0 2y=8-4x y=4-2x slope= -2
What are the points of intersection of the line x -2y equals 1 with the curve 3xy -y squared equals 8 showing work?
If: x -2y = 1 then x = 1+2y If: 3xy -y^2 = 8 then 3(1+2y)y -y^2 = 8 So: 3y+6y^2 -y^2 = 8 => 3y+5y^2 -8 = 0 Solving the above quadratic equation: y = 1 or y = -8/5 By substitution the points of intersection are at: (3, 1) and (-11/5, -8/5)
How do you rewrite - 4x equals 2y - 16 so y is a function of x?
-4x=2y-16 +16 +16 (-4x+16)=(2y) /2 /2 y=-2x+8
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