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Alinara [238K]
3 years ago
5

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

Mathematics
1 answer:
QveST [7]3 years ago
3 0

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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katen-ka-za [31]

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Step-by-step explanation:

We start with the function:

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