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! :)
I think it is B because it isn’t a solid line and it’s going up
Well, all you have to do to solve this is multiply 850 times 10, which is 8,500, so that means there are 8 thousands.
PLEASE choose my answer as the Brainliest, as I have explained my answer well, and I am REALLY close to ranking up!
THANK YOU AND I HOPE I HELPED! =D
Answer:
2458
Step-by-step explanation: