Step-by-step explanation:
1.Get the equation in the form y = ax2 + bx + c.
2.Calculate -b / 2a. This is the x-coordinate of the vertex.
3.To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y. This is the y-coordinate of the vertex.
Answer:
Hiiiii, the answer is (x,-y)
Step-by-step explanation:
The top question is B. 30, because you have to set 7y-30 equal to 4y+60 since both lengths are the same.
1580 I assume srry if it is incorrect