The equation of a parabola is:
![y = ax {}^{2} + bx + c](https://tex.z-dn.net/?f=y%20%3D%20ax%20%7B%7D%5E%7B2%7D%20%20%2B%20bx%20%2B%20c)
If a>0, then the parabola opens up;
If a<0, then the parabola opens down.
The coordinates of focus are:
Answer:
1/2x +2
Step-by-step explanation:
Let's say there are 2 teams : A & B
A leads with x points, while B score 2 points less than half of B's score (x)
B = 1/2 of B score - 2
The difference of A - B = x - (1/2x - 2) = x - 1/2x + 2 = 1/2x + 2
Answer : 25x^4 - 10x^2 - 3
substitute 5x^2 for x in the equation x^2-2x-2
(5x^2)^2 - 2(5x^2) - 3
simplify
25x^4 - 10x^2 -3
Answer:
50
Step-by-step explanation:
{ (-5)-(-7)-(-3) } x10
{ (-5) +7 +3 } x 10
(-5 +10) x 10
5 x 10 = 50