Q. Write the equation in standard form for the ellipse x2+2y2−16y+28=0.
Complete the square for y: Now, we complete the square for the y terms. To do this, we add (28)2=16 to both sides, inside the parenthesis for y.x2+2(y2−8y+16)=−28+2(16)
Simplify the equation: Simplify the equation by performing the addition. x2+2(y−4)2=4
Divide for standard form: Now, divide the whole equation by 4 to get the standard form of the ellipse.4x2+2(y−4)2=1
More problems from Convert equations of ellipses from general to standard form