Linear Equations Flashcards
6 cards from real Algebra Test practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 6 Linear Equations flashcards as text
What is the equation of a line with slope 3 passing through (0, -1)?
Answer: y = 3x - 1
Using y = mx + b with m = 3 and b = -1 gives y = 3x - 1.
Solve for y: 7y = 49
Answer: y = 7
Divide both sides by 7 to get y = 7.
Which value of x makes x/3 = 5 true?
Answer: x = 15
Multiply both sides by 3 to get x = 15.
What is the slope of a horizontal line?
Answer: 0
A horizontal line has no rise for any run, so its slope is 0.
Solve: 2(3x + 1) = 14
Answer: x = 2
Distribute to get 6x + 2 = 14, subtract 2 to get 6x = 12, then divide by 6 to get x = 2.
If y = 2x + 1, what is y when x = 4?
Answer: 9
Substitute x = 4 to get y = 2(4) + 1 = 9.