Points a and b both on line y=3x+7 work out the missing y coordinate for a and the missing x coordinate for b

Question

Points a and b both on line y=3x+7 work out the missing y coordinate for a and the missing x coordinate for b

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Jezebel 6 months 2021-09-02T09:19:55+00:00 1 Answers 0 views 0

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    2021-09-02T09:21:16+00:00

    Answer:

    Missing y coordinate for a is 3x+7

    Missing x coordinate for b is \frac{b-7}{3}

    Step-by-step explanation:

    Given: Equation of a line is y=3x+7

    To find: missing y coordinate for a and the missing x coordinate for b

    Solution:

    First find missing y coordinate for a

    Put x=a in y=3x+7

    y=3(a)+7=3a+7

    Now find the missing x coordinate for b

    Put y=b in y=3x+7

    b=3x+7\\3x=b-7\\\\x=\frac{b-7}{3}

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