Three vertices of parallelogram ABCD are A(−1,5), B(2,1) and D(−2,−3). Identify the coordinates of vertex C. HELP PLEASE!!!

Mathematics

1 answer:

ioda3 years ago

7 0

Answer:

Plot the points on the graph and you'll find the coordinates of vertex C.

Step-by-step explanation:

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3 years ago

PLS HELP WILL GIVE BRAINLIEST

andreyandreev [35.5K]

The guts of the table are ...

$\left[\begin{array}{cccc}x&y&x+y=85&y=2x+4\\19&65&\text{false}&\text{false}\\25&60&\text{true}&\text{false}\\27&58&\text{true}&\text{true}\\32&53&\text{true}&\text{false}\end{array}\right]$

Of course, you know the answer after figuring the third line of the table.

The two numbers are 27 and 58.

_____

If the second number is odd, the result after subtracting 4 will not be divisible by 2. This lets you reject the 1st and 4th choices immediately. As for the second choice, twice 25 is 10 less than 60, not 4 less, so that choice can also be discarded.

Starting from the system of equations

$x+y=85\\y=2x+4$