Graphs of Linear Functions Quiz
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5 questions, one answer each
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1. A straight line has equation y = 3x + 2. What is the gradient and y-intercept of this line?
- A. Gradient = 3, y-intercept = 2
- B. Gradient = 2, y-intercept = 3
- C. Gradient = 3x, y-intercept = 2
- D. Gradient = -3, y-intercept = -2
2. A distance-time graph shows a horizontal line at 50 km. What does this represent?
- A. The object is moving at 50 km/h
- B. The object is stationary (not moving)
- C. The object is accelerating
- D. The object has travelled 50 km total
3. Find the equation of a line passing through the points (0, 5) and (2, 11).
- A. y = 3x + 5
- B. y = 2x + 11
- C. y = 3x + 2
- D. y = 5x + 2
4. A line has gradient -2 and passes through the point (1, 4). What is the equation of the line?
- A. y = -2x + 4
- B. y = -2x + 6
- C. y = 2x + 2
- D. y = -2x + 1
5. Line A has equation y = 4x - 1. Line B is perpendicular to Line A and passes through (0, 3). What is the equation of Line B?
- A. y = 4x + 3
- B. y = -¼x + 3
- C. y = ¼x + 3
- D. y = -4x + 3