Question

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Class 9, ex-4.3....
If the point (3,4) lies on the graph of the equation 3y = ax + 7, find the value of a
The taxi fare in a city is as follows: For the first kilometre, the fare is 8 and for the
subsequent distance it is 5 per km. Taking the distance covered as x km and total
fare as y, write a linear equation for this information, and draw its graph.​

Answer 1

Answer:

The value of a is 5/3.

Step-by-step explanation:

(i) ∵The point (3,4) lies on the graph 3y = ax+7. ∴The point (3,4) must satisfy the equation of graph.

⇒ 3×4 = a×3+7

or 12 = 3a+7

or 3a = 12-7 = 5

⇒ a = 5/3

(ii) Please refer the image below.

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