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2 answers:
Answer: D 1.8
Step-by-step explanation:
The equation for direct variation between x and y is given by :-
, where k is the proportionality constant.
To find k (the proportionality constant or the constant of proportionality) , we use the following equation:-
IN the given situation, we have a table for x and y values, where each x values corresponds to a unique y-value.
For x= 3 , the value of y= 5.4
Then, the constant of proportionality is given by :-
Hence, the correct answer is Option D 1.8
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Answer:
(x, y) = (1, 1)
Step-by-step explanation:
Using the second equation to substitute for y in the first equation, we have ...
x = -2x +3
3x = 3 . . . . . . . add 2x
x = 1 . . . . . . . . .divide by 3
y = x = 1
The solution is (x, y) = (1, 1).
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If you have the graph, you can read the solution from it as the coordinates of the point where the lines cross.
