Test Tomorrow – Comparing Functions

In preparation for your test tomorrow, please review the following items.

  • How to find the initial value and rate of change on an equation
    • y = 4x + 7 (the rate of change = 4 , the initial value = 7)
  • How to find the initial value and rate of change from a sentence/ story problem
    • Plant B was 9 inches tall when it was planted, and grew 3.5 inches year. (Initial value = 9, rate of change = 3.5)
  • How to find the initial value and rate of change from a graph
    • Initial Value is when the lines crossed the y axis (up and down) and rate of change is finding 3 points on the graph and finding the change of two “y” values and 2 “x” values.

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