Question

Is the point (2,1) lie on the graph of the linear equation 5x+15y=19? Explain. Determine the point on the graph of the linear equation 2x-7y=49, whose ordinate is equal to abscissa? At what point the graph of the linear equation 2x-y=7 cuts the y-axis?

Answer 1

Step-by-step explanation:

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Addy200206

Addy200206

17.02.2018

Math

Secondary School

+5 pts

Answered

Determine the point on the graph of the linear equation 2x+5y=19,whose ordinate is 1 and half times its abscissa

2

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Answers

HappiestWriter012

HappiestWriter012 Genius

Let the abscissa be x.

Then the ordinate = 3/2a .

Now, Coordinates of the point ( a, 3/2a ) .

Also, Given that it is a point on the line 2x + 5y = 19

Now,

2(a) + 5(3/2a) = 19

2a + 15/2a = 19

19a = 38

a = 2 .

Now, Abscissa = 2 .

Ordinate = 3/2(2)= 3 .

the required point are (2,3)

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Answer 2

HI BESTIE (Shakshu)

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