I think your talking about quadratics, so
They didn’t specify which way the parabola was translated, right or left, up or down?
Since there wasn’t specification of direction, I will use positive (to the right) and up (upwards)
a = 1/2
h = +5
k = +5
y = a(x-h)^2+k
y = 1/2 (x - 5)^2 + 5
Now if your writing it in standard form (above was vertex form) you’d just expand it
y = 1/2 (x-5)(x-5) + 5
y = 1/2 [(x^2) -5x -5x ] + 25 + 5
y = 1/2 x^2 - 5x + 30
If each math book is 0.75 of a inch wide you would do 18 divided by 0.75= 24. 24 books width can fit into the 18 inches.
Answer:
90 degrees
Step-by-step explanation:
360/4=90
