Answer:
f(x) = 2x² - 8x - 10.
This is a parabola open upward (since a>0) with an axis of symmetry = -b/2a:
a) axis of symmetry: x = -(-8)/(2*2) = 8/4 = 2. Then x = 2, which is the x component of the vertex
b) for x = 2, f(x) = f(2) = - 18 (component of y of the vertex)
c) VERTEX(2, - 18)
d) DISCRIMINENT: b² - 4.a.c = 64 - 4*2*(-10) = 144
Hope this helps! :)
2 1/2 * 5 = 12 1/2 cups of flour are needed to make 5 batches
5/2 * 5/1=25/2 or 12 1/2 cups
Answer:
No. Dividing by 0 is not rational, no number works.
Answer:
Step-by-step explanation:
