Mathematics - Algebra & Functions Flashcards

6 cards from real CHSPE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Mathematics - Algebra & Functions flashcards as text

Solve for x: 3x + 7 = 22
Answer: x = 5
3x = 22 − 7 = 15; x = 15 ÷ 3 = 5.
Which graph represents a linear function?
Answer: A straight line
A linear function always produces a straight-line graph.
What is the slope of a line passing through (2, 3) and (6, 11)?
Answer: 2
Slope = (11 − 3) ÷ (6 − 2) = 8 ÷ 4 = 2.
If f(x) = 2x − 4, what is f(5)?
Answer: 6
f(5) = 2(5) − 4 = 10 − 4 = 6.
Solve the inequality: 2x − 3 > 7
Answer: x > 5
2x > 10; x > 5.
Which equation represents the line with slope 3 and y-intercept −2?
Answer: y = 3x − 2
Slope-intercept form is y = mx + b, so slope 3 and y-intercept −2 gives y = 3x − 2.