Linear Equations & Functions Flashcards
7 cards from real REGENTS-ALGEBRA practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Linear Equations & Functions flashcards as text
What is the slope of the line represented by the equation y = 3x - 7?
Answer: 3
In slope-intercept form y = mx + b, the coefficient of x is the slope, which is 3.
Which equation represents a line with a slope of -2 and a y-intercept of 5?
Answer: y = -2x + 5
Slope-intercept form is y = mx + b where m = -2 and b = 5, giving y = -2x + 5.
What is the y-intercept of the line 4x + 2y = 12?
Answer: 6
Setting x = 0 gives 2y = 12, so y = 6; the y-intercept is 6.
The slope of the line passing through points (2, 5) and (6, 13) is:
Answer: 2
Slope = (13 - 5) / (6 - 2) = 8 / 4 = 2.
Which of the following lines is parallel to y = 4x + 1?
Answer: y = 4x - 3
Parallel lines have the same slope; y = 4x - 3 has slope 4, same as the original line.
What is the x-intercept of the line y = 2x - 8?
Answer: x = 4
Setting y = 0 gives 0 = 2x - 8, so x = 4.
A line has slope 0. Which statement best describes it?
Answer: The line is horizontal.
A slope of 0 means no rise for any run, resulting in a horizontal line.