High School Math (Algebra) Pre-test Quiz
Play this informative quiz on high school algebra and test your concepts. Most people have a hard time when it comes to Algebra, and most of them give up when it comes to tackling some questions. How good are you when it comes to Algebra? Below is a pretest of basic algebra and arithmetic for high school-level mathematics. Do you think you can tackle it? Give it a shot and get to find out!
- 1.
Evaluate: 10 - 2(3)
- A.
-13
- B.
4
- C.
16
- D.
24
- E.
None of the above
Correct Answer
B. 4Explanation
To evaluate the expression 10 - 2(3), we first simplify the multiplication within the parentheses: 2(3) equals 6. Then, we substitute this value back into the expression: 10 - 6 equals 4. Therefore, the correct answer is 4.Rate this question:
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- 2.
-23 =
- A.
-8
- B.
-6
- C.
8
- D.
6
- E.
9
Correct Answer
A. -8 -
- 3.
6 - 32
- A.
-9
- B.
-3
- C.
3
- D.
6
- E.
9
Correct Answer
B. -3Explanation
The given expression is 6 - 32. When we subtract 32 from 6, we get -26. However, the answer choices provided do not include -26. Therefore, none of the answer choices match the result of the expression. Thus, the correct answer is not available.Rate this question:
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- 4.
Solve for x: 3x - 3 = 9
- A.
X = 10x = -6
- B.
X = 6
- C.
X = 4
- D.
X = -6
- E.
None of the above
Correct Answer
C. X = 4Explanation
To solve the equation 3x - 3 = 9, we need to isolate the variable x. Adding 3 to both sides of the equation, we get 3x = 12. Then, dividing both sides by 3, we find x = 4. Therefore, the correct answer is x = 4.Rate this question:
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- 5.
2k + 3 + 5k = 10 What should be the first step to solving the equation?
- A.
Substituting values in for k
- B.
Subtracting 5k from both sides of the equation
- C.
Subtracting 2k from 2k and 5k.
- D.
Adding 2k to 5k
- E.
Dividing both sides of the equation by 2
Correct Answer
D. Adding 2k to 5kExplanation
To solve the equation 2k + 3 + 5k = 10, you should perform the first step by simplifying and combining like terms:
2k + 5k = 7k
Now, the equation becomes:
7k + 3 = 10Rate this question:
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- 6.
2(m - 3) = 3m + 3 The first step to solving this equation should be
- A.
Subtracting 3m from both sides of the equation
- B.
Combining 2m with 3m
- C.
Distributing the 2 into (m - 3)
- D.
Subtracting 3 from both sides of the equation
- E.
Substituting values into m
Correct Answer
C. Distributing the 2 into (m - 3) -
- 7.
Simplify: (2x3)2
- A.
2x^5
- B.
2x^6
- C.
4x^5
- D.
4x^6
- E.
None of the above
Correct Answer
D. 4x^6Explanation
To simplify the expression (2x^3)^2, we need to apply the exponent to both the coefficient and the variable. When we raise a power to another power, we multiply the exponents. In this case, we have (2x^3)^2, so the exponent 2 is applied to both 2 and x^3. Therefore, we have 2^2 * (x^3)^2 = 4x^6.Rate this question:
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- 8.
Write in simplest radical form: sqrt(200)
- A.
10*sqrt(2)
- B.
2*sqrt(10)
- C.
5*sqrt(8)
- D.
100*sqrt(2)
- E.
None of the above
Correct Answer
A. 10*sqrt(2)Explanation
The given expression is sqrt(200). We can simplify this by finding the largest perfect square that divides 200. Since 100 is the largest perfect square that divides 200, we can rewrite sqrt(200) as sqrt(100*2). Taking the square root of 100 gives us 10, so the expression simplifies to 10*sqrt(2). Therefore, the correct answer is 10*sqrt(2).Rate this question:
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- 9.
What is the slope of the equation y = -2x + 3?
Correct Answer
-2Explanation
The slope of an equation represents the rate at which the y-values change with respect to the x-values. In the given equation, y = -2x + 3, the coefficient of x is -2. This means that for every unit increase in x, the y-value decreases by 2 units. Therefore, the slope of the equation is -2.Rate this question:
- 10.
What is the y-intercept of the equation, y + 2x = 6
Correct Answer
6Explanation
The y-intercept of an equation represents the point where the line intersects the y-axis. To find the y-intercept, we need to set x=0 and solve for y. In this equation, if we substitute x=0, we get y+2(0)=6, which simplifies to y=6. Therefore, the y-intercept of the equation is 6.Rate this question:
- 11.
What is the value of x in the following system of equations: 3x - 2y = 0 3x + y = 9
Correct Answer
2, x=2 - 12.
Solve for x: x2 - x - 2 = 0
Correct Answer
x = 2, x = -1, 2, -1Explanation
This is a quadratic equation in the form of ax^2 + bx + c = 0. We can solve for x using the quadratic formula:
x = (-b ± √(b^2 - 4ac)) / 2a
In this case, a = 1, b = -1, and c = -2. Substituting these values into the quadratic formula, we get:
x = (1 ± √((-1)^2 - 4 * 1 * -2)) / (2 * 1) x = (1 ± √(1 + 8)) / 2 x = (1 ± √9) / 2 x = (1 ± 3) / 2
This gives us two possible solutions:
x = (1 + 3) / 2 = 4 / 2 = 2 x = (1 - 3) / 2 = -2 / 2 = -1
Therefore, the solutions to the equation x^2 - x - 2 = 0 are x = 2 and x = -1.Sources and related contentRate this question:
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Sep 30, 2024Quiz Edited by
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Dec 09, 2015Quiz Created by
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