Answer:
x=4
Step-by-step explanation:
2x-3=3x-7
Subtract 2x from both sides of the equation
Add 7 to both sides of the equation to isolate x
Answer
f(x)=9/x , g(x) = x / x + 1 = 9/2
Step-by-step explanation:
The answer of this problem is A because 3 times 21 is 63 and then you plus 1
which is 64
Let's first rewrite it in vertex form.
Start by completing the square.
y = x² + 4x + 4 - 4 - 1
y = (x + 2)² - 5
(x + 2)² = y + 5
Now, 4a = 1; a =

So, the vertex form is (x + 2)² = 4(

)(y + 5)
So, we know that the vertex is at (-2, -5).
Since it's a concave up parabola, we just have to change the y-value to find the focus.
∴ F(-2, -5 +

)
F(-2,

)