Answer:
B) -3
Step-by-step explanation:
The zeros of the function are found easily from the factors. They are 6 and -12. The x-coordinate is halfway between them, at (6 + (-12))/2 = -6/2 = -3.
If you want a formula, consider a quadratic with roots (zeros) p and q. Then it factors as
... y = (x -p)(x -q)
The line of symmetry through the vertex is also the line of symmetry between the roots, so has x-coordinate:
... x = (p+q)/2
___
In your problem, you have p=6, q=-12, so x = (p+q)/2 = -6/2 = -3 is the line of symmetry and the x-coordinate of the vertex.
Answer:
B is the answer
Step-by-step explanation:
Answer:
22
Step-by-step explanation:
Answer:
12$
Step-by-step explanation:
this is a helper
Answer:
a) “There is no integer n such that for all integers m, m<n”
b) The proposition is false and its negation true.
Step-by-step explanation:
a)
The negation of the proposition is
<em>“There is no integer n such that for all integers m, m<n”
</em>
b)
It is easy to prove that the proposition is false.
If there existed such an integer n , then since n+1 is an integer, n+1 < n, which is a <em>contradiction. </em>
So such an integer n cannot exist.
Since the proposition is false, its negation is true.