Solve x=-2y^2+16y?
回答 (4)
2017-12-10 6:29 am
Solution of an algebraic problem with 2 variables such as 'x' and 'y' need 2 equations. (Ans.)
2017-12-10 5:24 am
x = -2y (y - 8)
Roots are (0, 0) and (0, 8)
Min (32, 4)
Parabola opening to the left
Roots are (0, 0) and (0, 8)
Min (32, 4)
Parabola opening to the left
2017-12-10 5:08 am
Are you trying to solve for y in terms of x?
x = -2y² + 16y
-1/2 x = y² − 8y
-1/2 x + 16 = y² − 8y + 16
16 − 1/2 x = (y − 4)²
±√(16 − 1/2 x) = y − 4
y = 4 ± √(16 − 1/2 x)
x = -2y² + 16y
-1/2 x = y² − 8y
-1/2 x + 16 = y² − 8y + 16
16 − 1/2 x = (y − 4)²
±√(16 − 1/2 x) = y − 4
y = 4 ± √(16 − 1/2 x)
2017-12-10 5:05 am
"Solve" has a multitude of meanings. WHAT do you want to "solve" exactly? WE are not mind-readers. Be specific.
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