Answer:
the vertex is ( 3 , 3)
Symetric axis‘s equation: x = 3
Step-by-step explanation:
Let‘s name the function ” f ”
f(x) = y = 2x² - 12x + 21
the vertex has coordinates of ( -b/2a , f(-b/2a) )
-b/2a = 12/2(2) = 12/4 = 3
f(-b/2a) = f(3) = 2(3)² - 12(3) + 21 = 3
then the vertex is ( 3 , 3)
the symetric axis has the equation :
x = -b/2a
then
Answer:
x = 3
Step-by-step explanation:
..........................
The old mean was 51 now the mean is 42.33... (round that to 42) 51 - 42 = 9
Answer:
23,230
Step-by-step explanation:
230 is ten times larger than 23, and if you add them together is it 253
