Nslate the sentence into an equation. The sum of 6 times a number and 2 is 9.
1 answer:
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Given:
The quadratic equation is
To find:
The vertex of the given quadratic equation.
Solution:
If a quadratic function is , then
We have,
It can be written as
...(i)
Here, .
Putting in (i), we get
On further simplification, we get
So, the vertex of the given quadratic equation is .
Therefore, the correct option is A.
We are supposed to explain why the given function can be expressed in form , when
.
Since the given function is an exponential function we can express it as .
Now let us substitute x=0 in the given function,
Let us substitute x=0 in our function.
Upon substituting a=1 in our function we will get,
Therefore, our function f can be represented by the formula of the form .