Question

find a
if f(x). ax +10 and f(1)= 13​

Answer 1

Solution -

We have,

• f(x) = ax + 10

It is given that, f(1) = 13.

So firstly, we have to find f(1).

⠀

Put x = 1

⇢ f(1) = a(1) + 10

⇢ f(1) = a + 10

⠀

Now, it is given that f(1) = 13

⇢ a + 10 = 13

⇢ a = 13 - 10

⇢ a = 3

⠀

Hence,

• Value of a is 3.

⠀

For verification, put

• x = 1, and
• a = 3

⇢ ax + 10 = 13

⇢ 3(1) + 10 = 13

⇢ 3 + 10 = 13

⇢ 13 = 13

Hence proved

⠀

Thus, value of a is 3.

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Answer 2

Given:-

• f(x) = ax + 10
• f(1) = 13

⠀

To find:-

• Value of a.

⠀

Solution:-

★ In this question we have given that f(x) = ax + 10 and f(1) = 13. We have to find out the value of a. Let's do it.

⠀

According to the question,

⠀

Firstly,

• Putting x = 1

⠀

⇢ f(1) = a(1) + 10

⇢ f(1) = a + 10

⠀

Now,

⠀

⇢ f(1) = 13

⇢ a + 10 = 13

⇢ a = 13 - 10

⇢ a = 3

⠀

Hence,

• The value of a is 3.