If (a , 3) is the point lying on the graph of the equation 5x + 2y = -4 , then find a ​

Question

If (a , 3) is the point lying on the graph of the equation 5x + 2y = -4 , then find a

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Charlie 1 month 2021-08-12T17:34:30+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-12T17:36:25+00:00

    Step-by-step explanation:

    x= a

    y= 3

    According to eq.

    5a + 2(3) = -4

    5a + 6 = -4

    5a = -4 – 6

    5a= -10

    a = -2

    0
    2021-08-12T17:36:28+00:00

    Answer :

    a = -2

    Solution :

    Here ,

    The given equation of straight line is ;

    5x + 2y = -4

    Also ,

    It is given that , the point (a , 3) lies on the graph of the given equation .

    Thus ,

    The coordinates of the point (a , 3) must satisfy the given equation .

    Thus ,

    Putting x = a and y = 3 in the given equation ,

    We have ;

    => 5x + 2y = -4

    => 5×a + 2×3 = -4

    => 5a + 6 = -4

    => 5a = -4 – 6

    => 5a = -10

    => a = -10/5

    => a = -2

    Hence ,

    Required answer is ; a = –2 .

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