Find the missing number:

To find the missing number, we need to find the pattern.

If we look closely, our numbers are going up by the same number each time: 13

To check this, find the difference between neighboring numbers

You get the idea.

So, to find the missing number, simply do the following:

You need to evaluate the terms in the sequence to determine the pattern that is shown. In this case, the first term is multiplied by 2 and the second term is found by adding 3.

Notice that the world parabolic is given.  This means that our parent function will be in the form:   

The terms resemble a pattern where the parent function  is centered at , and the first term starts at  and so forth.

We can find the two missing terms by substituting  to determine the missing numbers.

The first number is:

The second number is:  

The respective numbers are:  

Notice that the second and third terms in the set of numbers can be subtracted to determine the displacement of each number in the set.

Subtract negative three from one.  Enclose the negative number with parentheses.

Each number is spaced four units.

Subtract four from negative three to find the first number.

Add four to one to find the number for the second question mark.

This number is also four units from nine.

The answer is:  

Determine the distance between each number.

The second and the third number are spaced  units.

Check the third and fourth number if this is also has the same displacement.

Since this is true, this means that the numbers are also spaced at  units.

Notice the fractions are in decreasing order.

Add  units to the second term to obtain the first term.

Reduce this fraction.

The first term is:  

Subtract  units from  to obtain the fifth term.

Reduce this fraction.

The fifth term is:  

The correct answer is:  

A quadrant is set up in such a way that the positive numbers are to the right and top, while the negative numbers are to the left and bottom. The x-value (the first number in the ordered pair) is the distance left or right from the center. The y-value (the second number in the ordered pair) is the distance above or below the axis.

will be units to the right, and units up.

will be units to the left, and units up.

 has 0 as its -cordinate and is therefore on the -axis, which is not part of any of the four quadrants.

Quadrant III comprises the points whose - and - coordinates are both negative. This makes  the correct choice.

 has 0 as its -coordinate and is therefore on the -axis, which is not part of any of the four quadrants.

The third quadrant is the lower left quadrant, where both the  and  values are negative.  The point  is the only point that is in this quadrant.