Math, asked by bhumikabisht2006, 3 months ago


If (4, 19) is a solution of the equation y = ax +3, then find the value of a.​

Answers

Answered by muzammilqrairways
1

Answer:

a=4

Step-by-step explanation: 4 is the x cordinate and 19 is the y corrdinate. So put in the values.

19=4a+3

16=4a

4a=16

a=4

Answered by anushkarai432
1

Answer:

a = 4

Step-by-step explanation:

Since the co-ordinates in the brackets depict the the points on X-axis and Y-axis. For example as shown below:-

⇒ In the question we have 4 and 19 in the brackets therefore, 4 is on the X-axis (abscissa) as the number on the left hand side of the bracket depicts the point on X-axis and so the value for X will be 4 only. Now, the number on the right hand side of the bracket depicts the point on Y-axis therefore, 19 is on the Y-axis (ordinate) and is the the value for Y. So now putting the values in the given equation to find out the value for 'a':-

y = 19 → From the given statement above (1)

x = 4 → Also from the given statement above (2)

⇒ Substituting (1) and (2) in the equation, we get:

⇒ 19 = a(4) + 3

⇒ 19-3 = 4a → By transposing and multiplying a and 4

⇒ 16 = 4a

⇒ a = 16÷4

⇒ a = 4

∴ The value of a is 4

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