All SSAT Upper Level Math Resources
Example Questions
Example Question #51 : Geometry
Find the circumference of a circle with a diameter of 2.
There are two possible formulas for finding the circumference of a circle. They are as follows:
And:
Where C is circumference, r is radius, and d is diameter.
For this problem, we are given the diameter is 2, meaning we can plug our numbers into the second equation. Since pi is an irrational constant, it is okay to leave the answer in terms of pi.
Example Question #52 : Geometry
Find the circumference of a circle with a radius of 12.
There are two possible formulas for finding the circumference of a circle. They are as follows:
And:
Where C is circumference, r is radius, and d is diameter.
For this problem, we are given the radius is 12, meaning we can plug our numbers into the first equation. Since pi is an irrational constant, it is okay to leave the answer in terms of pi.
Example Question #53 : Geometry
Find the circumference of a circle with a radius of 13.
There are two possible formulas for finding the circumference of a circle. They are as follows:
And:
Where C is circumference, r is radius, and d is diameter.
For this problem, we are given the radius is 13, meaning we can plug our numbers into the first equation. Since pi is an irrational constant, it is okay to leave the answer in terms of pi.
Example Question #54 : Geometry
Find the circumference of a circle with a radius of 27.
There are two possible formulas for finding the circumference of a circle. They are as follows:
And:
Where C is circumference, r is radius, and d is diameter.
For this problem, we are given the radius is 27, meaning we can plug our numbers into the first equation. Since pi is an irrational constant, it is okay to leave the answer in terms of pi.
Example Question #525 : Sat Mathematics
Given the graph of the line below, find the equation of the line.
To solve this question, you could use two points such as (1.2,0) and (0,-4) to calculate the slope which is 10/3 and then read the y-intercept off the graph, which is -4.
Example Question #2 : Coordinate Geometry
Which line passes through the points (0, 6) and (4, 0)?
y = 2/3x –6
y = 2/3 + 5
y = 1/5x + 3
y = –3/2 – 3
y = –3/2x + 6
y = –3/2x + 6
P1 (0, 6) and P2 (4, 0)
First, calculate the slope: m = rise ÷ run = (y2 – y1)/(x2 – x1), so m = –3/2
Second, plug the slope and one point into the slope-intercept formula:
y = mx + b, so 0 = –3/2(4) + b and b = 6
Thus, y = –3/2x + 6
Example Question #3 : Coordinate Geometry
What line goes through the points (1, 3) and (3, 6)?
–3x + 2y = 3
2x – 3y = 5
4x – 5y = 4
–2x + 2y = 3
3x + 5y = 2
–3x + 2y = 3
If P1(1, 3) and P2(3, 6), then calculate the slope by m = rise/run = (y2 – y1)/(x2 – x1) = 3/2
Use the slope and one point to calculate the intercept using y = mx + b
Then convert the slope-intercept form into standard form.
Example Question #61 : Lines
What is the slope-intercept form of ?
The slope intercept form states that . In order to convert the equation to the slope intercept form, isolate on the left side:
Example Question #1441 : Gre Quantitative Reasoning
A line is defined by the following equation:
What is the slope of that line?
The equation of a line is
y=mx + b where m is the slope
Rearrange the equation to match this:
7x + 28y = 84
28y = -7x + 84
y = -(7/28)x + 84/28
y = -(1/4)x + 3
m = -1/4
Example Question #101 : Algebra
If the coordinates (3, 14) and (–5, 15) are on the same line, what is the equation of the line?
First solve for the slope of the line, m using y=mx+b
m = (y2 – y1) / (x2 – x1)
= (15 – 14) / (–5 –3)
= (1 )/( –8)
=–1/8
y = –(1/8)x + b
Now, choose one of the coordinates and solve for b:
14 = –(1/8)3 + b
14 = –3/8 + b
b = 14 + (3/8)
b = 14.375
y = –(1/8)x + 14.375
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