SAT/ACT Math Practice #14

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
+9
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the inequality x ≤ -2 or x ≥ 4 represent on a number line?
Back
It represents the values of x that are either less than or equal to -2 or greater than or equal to 4.
2.
FLASHCARD QUESTION
Front
How do you simplify the expression 2(6x + 3) - 3(2x - 4)?
Back
By distributing, you get 12x + 6 - 6x + 12, which simplifies to 6x + 18.
Tags
CCSS.6.EE.A.3
3.
FLASHCARD QUESTION
Front
What is the result of multiplying (i + 2)(i + 4)?
Back
The result is 6i + 8.
Tags
CCSS.HSN.CN.A.2
4.
FLASHCARD QUESTION
Front
If 0 < m < 1, which expression has the largest value: m, m^2, or m^{-1}?
Back
m^{-1} has the largest value because it represents the reciprocal of m, which is greater than 1.
Tags
CCSS.8.EE.A.1
5.
FLASHCARD QUESTION
Front
How do you find f(g(1)) if f(x) = 2x + 4 and g(x) = x^2 - 1?
Back
First, find g(1) = 1^2 - 1 = 0, then find f(0) = 2(0) + 4 = 4.
Tags
CCSS.HSF-BF.A.1C
6.
FLASHCARD QUESTION
Front
What is the definition of a function?
Back
A function is a relation that assigns exactly one output for each input.
Tags
CCSS.8.F.A.1
7.
FLASHCARD QUESTION
Front
What is the difference between a linear function and a quadratic function?
Back
A linear function has the form f(x) = mx + b, while a quadratic function has the form f(x) = ax^2 + bx + c.
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