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
4<√19<5
8<√77<9
so the quality numbers are 5,6,7,and 8
5+6+7+8=26
so the answer is 26
1,234
One thousand
Two hundred
Thirty four
What is the mode? 22, 7, 22, 1, 7, 18, 18, 16, 6, 6, 7
kolbaska11 [484]
Answer:
7
Step-by-step explanation:
Put them in L to G
1 6 6 7 7 7 16 18 18 22 22
and u see how many times 7 repeated den all numbers.
