All SAT II Math I Resources
Example Questions
Example Question #462 : Advanced Geometry
What is the period of the function?
π
1
3π
4π
2π
4π
The period is the time it takes for the graph to complete one cycle.
In this particular case we have a sine curve that starts at 0 and completes one cycle when it reaches .
Therefore, the period is
Example Question #21 : How To Find Transformation For An Analytic Geometry Equation
Assume we have a triangle, , with the following vertices:
, , and
If were reflected across the line , what would be the coordinates of the new vertices?
When we reflect a point across the line, , we swap the x- and y-coordinates; therefore, in each point, we will switch the x and y-coordinates:
becomes ,
becomes , and
becomes .
The correct answer is the following:
The other answer choices are incorrect because we only use the negatives of the coordinate points if we are flipping across either the x- or y-axis.
Example Question #1 : Distance Formula
Find the distance between and .
For this problem we will need to use the distance formula:
In our case,
and .
Plugging these values into the formula we are able to find the distance.
Example Question #2 : Distance Formula
What is the distance between and ?
Write the distance formula.
Substitute the points:
The radical can be broken down into factors of perfect squares.
The answer is:
Example Question #1 : Midpoint Formula
Find the midpoint of the line that passes through the points and .
Recall the midpoint formula as .
Thus,
Example Question #602 : Sat Subject Test In Math I
Find the midpoint of the line that passes through the points and .
Recall the midpoint formula as .
Thus,
Example Question #603 : Sat Subject Test In Math I
What is the midpoint between and ?
The formula to find the midpoint is as follows:
In our case our
our
substituting in these values we get
midpoint =
Example Question #4 : Midpoint Formula
What is the midpoint between and ?
To find the midpoint of two points you find the average of both the values and values.
For ,
.
For ,
.
This means the midpoint is .
Example Question #1 : How To Find The Midpoint Of A Line Segment
What is the midpoint of the points (3,12) and (9,15)?
To find the midpoint we must know the midpoint formula which is
We then take the -coordinate from the first point and plug it into the formula as .
We take the -coordinate from the second point and plug it into the formula as .
We then do the same for and .
With all of the points plugged in our equation will look like this.
We then perform the necessary addition and division to get the answer of
Example Question #2 : How To Find The Midpoint Of A Line Segment
Find the midpoint of the line segment that connects the two points below.
Point 1:
Point 2:
The average of the the -coordinates and the average of the y-coordinates of the given points will give you the mid-point of the line that connects the points.
, where is and is .
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