Does this table represent a function? Why or why not?
1 answer:
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To solve this equation , we need to write it in quadratic form
To get the equation in quadratic form we replace x^2 with u
can be written as
, Replace u for x^2
So equation becomes
Now we factor the left hand side
-16 and -1 are the two factors whose product is +16 and sum is -17
(u-16) (u-1) = 0
u -16 = 0 so u=16
u-1 =0 so u=1
WE assume u = x^2, Now we replace u with x^2
Now take square root on both sides , x= +4 and x=-4
Now take square root on both sides , x= +1 and x=-1
So zeros of the function are -4, -1, 1, 4
Answer:
Option (3)
Step-by-step explanation:
Explicit formula of the sequence is,
From this explicit formula,
First term of the sequence will be,
Second term of the sequence,
= 13
3rd term of the sequence,
= 31
Sequence formed,
7, 13, 31 ..........
From the given options,
Recursive formula,
= 13
= 39 - 8
= 31
Sequence formed from this recursive formula will be,
7, 13, 31........
Therefore, Option (3) will be the answer.