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Math 7A

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Use the function rule, y = 2x + 5, to find the values of y when x = 1, 2, 3, and 4. Write the answers as ordered pairs that would be used to graph the function.
can someone help me i'm stuck on this question

  • Math 7A - ,

    Merely substitute the values for x and solve for y.

    y = 2(1) + 5 = 7

    Therefore the coordinates are 1, 7.

    Repeat with the other values.

  • Math 7A - ,

    2,9

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