This looks like an ellipse.
Complete the square for y: 9(y²-6y-7)=9(y²-6y+9-9-7)=9((y-3)²-16).
Rewrite the equation:
4x²+9(y-3)²-144=0; 4x²/144+9(y-3)²/144=1; x²/36+(y-3)²/16=1.
Standard equation of an ellipse is (x-h)²/a²+(y-k)²/b²=1, where (h,k) is the origin or centre.
This is the equation of an ellipse with centre (0,3), a=6 and b=4 (semimajor and semiminor axes).
D because n= -14 and were dividing 56
The graph of a linear function is a line
<span>
A)f(x) = -2 line
</span>
B)f(x) = x - 2 line<span>
C)f(x) = 2x </span>line<span>
D)f(x) = x</span>² parabola
So, D)f(x) = x² <span>is not a linear function</span>
