Using quadratic function concepts, it is found that Abby made a mistake on the coordinates of the vertex, which are (-4,1).
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- A quadratic function is defined by:

- The y-intercept is given by point:

- The vertex is given by:
. - The axis of symmetry is:

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The function given is:

- Which is a quadratic equation with:
.
, thus, the y-intercept is (0, -15).

- Thus, the <u>x-coordinate of the vertex</u> is x = -4, which is the same as the <u>axis of symmetry</u>.

- The vertex is given by: (-4,1).
A similar problem is given at brainly.com/question/14680175
The correct answer is y-axis, x-axis, y-axis, x-axis.
Only √3 is an irrational number, since you can't write it as a fraction
<h3>
Answer: 4</h3>
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Explanation:
We're given the following

which means that we have a set of natural numbers between 30 and 56, excluding both endpoints, and the set of numbers are also multiples of 6.
So looking at the multiples of 6 that are between 30 and 56 leads us to
{30, 36, 42, 48, 54}
but we cross off 30 as we want x to be larger than that, so we get this updated final list
{36, 42, 48, 54}
There are four items in this final list so the cardinality of the set described is 4. The cardinality is just the number of items in a given set.
Answer: option C, y = 4
Step-by-step explanation:
first, i simplified the equation.
y = ^3sqt64
then, i just calculated that.
y = 4