Question

If the point (3, 4) lies on the graph of 3y = ax + 7 then the value of a is


a) 2/5

b) 5/3

c) 3/5

d) 2/7

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Answer 1

hello Mr. moderator (●’◡’●)

here is ur answer☟︎︎︎☟︎︎︎

Since, the point (x = 3, y = 4) lies on the equation 3y = ax + 7, then the equation will be , satisfied by the point.

Now, put x = 3 and y = 4 in given equation, we get

3(4) = a (3)+7

⇒ 12 = 3a+7

⇒ 3a = 12 – 7

⇒ 3a = 5

Hence, the value of a is 5/3.

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Answer 2

$\Large\underline\mathbb\blue{ANSWER}$

$\tt{x = 3} \\\tt{ y = 4}$

$\: \: \: \: \: \: \: \: \: \: \: \tt{3y = ax + 7} \\ \\ \implies \tt{3(4) =a(3) + 7 } \\ \\ \implies \tt{12 = 3a + 7} \\ \\ \implies \tt{3a = 12 - 7} \\ \\ \implies\tt{ \boxed{ \tt{ \pink{a = \frac{5}{3} }}}}$

B) ⁵/3

hope it's helpful ✅✅✅