Y = x² + 4x + 4.. Since the coefficient of x² =1, is positive, then this parabola opens upward & has a minimum.
Its axis of symmetry is = -b/a = -4/1 = 4 (so x=4)
1) When x=4, y= 4²+4(4)+4 => y=36 so the VERTEX has a minimum is at (4,36)
2)FOCUS.: To be able to calculate the focus, rewrite the equation in a standard form: y-k =a(x-h)² & y = x² + 4x + 4 could be written y=(x+2)², this means that k=0 & h=-2.
Now p being the distance between the VERTEX & the FOCUS, we apply the formula (x-2)² = 4P (y-k) , but k=0 & h=2 then (x-2)² = 4P(y-0) then P =1/4
3) DRECTRICE : y=k-P = 0-1/4 ==> y=-1/4 is the directrix
they are both finite because 2/10=0.2, and 0.2 doesn't go on forever. -120/6=-20, which also has an end, and doesn't go on forever. I hope this helps :)
Answer:
y=1.50x+15
if you are adding the one time fee to the cost of x amount of movies
y=1.50x if you are just looking for the cost to x amount of movies
Step-by-step explanation:
Answer
A. 16.5
Step-by-step explanation:
First you calculate what 45% of 30 is. Then you subtract that from 30.
Answer:
your answer is 1.5
Step-by-step explanation:
200/2=100, 200+100=300
