Question 1: Given the function f(x) = 3x + 2, find the value of f(4).

Answer: 14

Question 2: Calculate f(7) when f(x) = 2x - 5.

Answer: 9

Question 3: Evaluate f(0) if f(x) = 5x + 7.

Answer: 7

Question 4: Plot the graph of y = 2x on the grid. (Draw the line based on points for x = -3, 0, 3.)

Answer: Coordinates: (-3, -6), (0, 0), (3, 6)

Question 5: Construct a triangle with sides of lengths 3, 4, and 5 on the grid.

Answer: Student draws a right-angled triangle with the specified side lengths.

Question 6: If f(x) = x² + 1, what is f(3)?

Answer: 10

Question 7: Solve for x: f(x) = 15, where f(x) = 4x - 1.

Answer: 4

Question 8: A function is given as f(x) = 2x + 3. What is the value of x when f(x) = 11? Show your working.

Answer: x=4

Question 9: Evaluate f(1) and f(-2) for f(x) = x³ - 2x.

Answer: f(1)= -1; f(-2)= -4

Question 10: A function f(x) = 5x - 6 models the cost in dollars for x items. How much would it cost to buy 8 items?

Answer: cost = 34 dollars

Question 11: A student incorrectly calculates f(2) for the function f(x)=x+4 and states the answer as 8. Identify the mistake and correct it.

Answer: Incorrect: f(2)=2+4=6. Correct answer: 6.

Question 12: Challenge: For the function f(x)=x²-3x+2, find the value of x when f(x)=0.

Answer: x=1 or x=2