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elena-s [515]
3 years ago
15

Which of these systems of equations shows the solution for the graph?

Mathematics
1 answer:
Semmy [17]3 years ago
6 0

Answer:

C)

Step-by-step explanation:

Solution of the equation is given by the intersecting point which is (2 , -1)

Find the equation of the line:

(0,4)  ; (2 , -1)

Slope = \dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\dfrac{-1-4}{2-0}\\\\m =\dfrac{-5}{2}

m = -5/2  ; (0 , 4)

Equation: y - y1 =m(x -x1)

y - 4 = =\dfrac{-5}{2}(x - 0)\\\\y =\dfrac{-5}{2}x + 4

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Step-by-step explanation:It is a matter of spotting the relationship if you can. If not obvious you will need to experiment to find what type of sequence it is; geometric or arithmetic.

Observe that there is a connection of 3 in the numbers 1,3,9 in that

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Using 27, if we apply the rule once more and get 81 we have found the correct 'rule' for this sequence.

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'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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