Linear Functions questions

1. Suppose you go to the grocery store and see that apples are on sale for $0.50 cents each, and you see there are 5 apples left that are available to buy. The amount of money you spend on apples is determined by how many apples you buy, so the amount of money spent on apples is a function of how many apples you buy, where number of apples bought is your input, and money spent on apples is your output. The given function table is used to represent this function. Find the rule, in equation form, for this function table, and fill in the missing entry.

2. Which of the following function tables has rule y = 2x + 5 where x is an integer that is greater than or equal to -3 and less than or equal to 2?

3. If a line passes through the points (x1, y1) and (x2, y2), then what is the formula we use to find the slope of the line?

4. Which of the following statements is NOT true?

5. What type of Rate of Change does this graph show?

  • Linear
  • Non linear when x < 2, linear when x > 2
  • Exponential
  • Non-Linear

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