My equation could be.....

• $y=-x^2+1$

• $y=x^2+1$

• $y=-x^2-1$

• $y=x^2-1$

My equation could be.....

• $y=-x^2+3$

• $y=x^2+3$

• $y=-x^2-3$

• $y=x^2-3$

My equation could be.....

• $y=2^x$

• $y=x^2+1$

• $y=3^x$

• $y=4^x$

My equation could be.....

• $y=2^x$

• $y=x^2+5$

• $y=5^x$

• $y=x^5$

My equation could be.....

• $x^2+y^2=1$

• $y=x^2+1$

• $x^2+y^2=2$

• $x^2+y^2=4$

My equation could be.....

• $x^2+y^2=2$

• $y=x^2+4$

• $x^2+y^2=4$

• $x^2+y^2=16$

My equation could be.....

• $y=-x^2+1$

• $y=x^2+1$

• $y=-x^2$

• $y=x^2$

My equation could be.....

• $y=-x^2+2$

• $y=x^2+2$

• $y=-x^2-2$

• $y=x^2-2$

My equation could be.....

• $y=-x^2+2$

• $y=x^2+2$

• $y=-x^2-2$

• $y=x^2-2$

My equation could be.....

• $y=-x^2+1$

• $y=x^2+1$

• $y=-x^2-1$

• $y=x^2-1$