If the line represented by the equation 3x + αy = 8 passes through the points (2,2), then the value of α is
  • a)
    0
  • b)
    4
  • c)
    3
  • d)
    1
Correct answer is option 'D'. Can you explain this answer?

Class 9 Question

By Aditi · Jan 22, 2020 ·Class 9
6 Answers
Nipun S answered Oct 27, 2018
ITS SIMPLE
GIVEN THAT IN EQ. 3x + ay = 8. PASSES THROUGH THE POINT (2,2) THAT MEANS THAT (2,2) IS A SOLUTION OF THE EQUATION
THERE FOR PUTTING VALUE X= 2 AND Y = 2 IN THE EQUATION WE HAVE
3(2) + a (2) = 8
6 + 2a = 8
2a = 8-6
2a = 2
a = 2/2 = 1
Therefore value of
a = 1

Sunita Singh answered Feb 07, 2020
Answer is 1
3x+ay=8
3*2+ay=8
6+ay=8
ay=8-6
ay=2
y=2
a*2 =2
a= 1

Kashish Bajaj answered Feb 21, 2020
3×2+a×2=8
6+2a=8
2a=8-6
a=2/2=1ans

Vrinda Khurana answered Jan 22, 2020
3x+ay=8
Since it passes through point (2,2),
Hence, (3*2)+(a*2)=8
Or, 6+2a=8
Or, 2a=8-6
Or, 2a=2
Or, a=2/2
Or, a=1 

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