CSET Mathematics: Number Theory and Algebra Flashcards
6 cards from real CSET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CSET Mathematics: Number Theory and Algebra flashcards as text
A teacher writes the equation y = mx + b on the board. What does 'b' represent?
Answer: The y-intercept
In slope-intercept form y = mx + b, 'b' is the y-intercept, the point where the line crosses the y-axis.
What is the least common multiple (LCM) of 12 and 18?
Answer: 36
LCM(12, 18) = (12 × 18) / GCD(12, 18) = 216 / 6 = 36.
Which number system includes all integers, fractions, and irrational numbers?
Answer: Real numbers
The real number system encompasses all rational numbers (integers, fractions) and irrational numbers.
If a system of two linear equations has no solution, the lines are best described as:
Answer: Parallel
A system with no solution consists of parallel lines that never intersect.
What is the value of 5! (five factorial)?
Answer: 120
5! = 5 × 4 × 3 × 2 × 1 = 120.
Which of the following expressions is equivalent to (x²)(x³)?
Answer: x⁵
When multiplying like bases, add exponents: x² × x³ = x^(2+3) = x⁵.
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