| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.55 |
| Score | 0% | 71% |
The endpoints of this line segment are at (-2, -2) and (2, 4). What is the slope of this line?
| 3 | |
| -1 | |
| 1\(\frac{1}{2}\) | |
| 1 |
The slope of this line is the change in y divided by the change in x. The endpoints of this line segment are at (-2, -2) and (2, 4) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(4.0) - (-2.0)}{(2) - (-2)} \) = \( \frac{6}{4} \)If a = 4, b = 3, c = 5, and d = 6, what is the perimeter of this quadrilateral?
| 22 | |
| 12 | |
| 27 | |
| 18 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 4 + 3 + 5 + 6
p = 18
What is 3a6 - 6a6?
| -3a6 | |
| 9a12 | |
| 9 | |
| 18a6 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
3a6 - 6a6 = -3a6
If the base of this triangle is 1 and the height is 3, what is the area?
| 56 | |
| 66 | |
| 1\(\frac{1}{2}\) | |
| 39 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 1 x 3 = \( \frac{3}{2} \) = 1\(\frac{1}{2}\)
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
division |
|
addition |
|
pairs |
|
exponents |
When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)