Answered

Discover new knowledge and insights with IDNLearn.com's extensive Q&A database. Join our Q&A platform to access reliable and detailed answers from experts in various fields.

If [tex]f(x) = 2x^2 + 1[/tex], what is [tex]f(x)[/tex] when [tex]x = 3[/tex]?

A. 1
B. 7
C. 13
D. 19

Sagot :

GinnyAnsweridn
Sure, let’s solve the given problem step by step.

We are given the function:
[tex]\[ f(x) = 2x^2 + 1 \][/tex]

We need to find \( f(x) \) when \( x = 3 \).

1. Substitute \( x = 3 \) into the function:
[tex]\[ f(3) = 2(3)^2 + 1 \][/tex]

2. Calculate the exponent:
[tex]\[ (3)^2 = 9 \][/tex]

3. Multiply by the coefficient 2:
[tex]\[ 2 \times 9 = 18 \][/tex]

4. Add 1 to the result:
[tex]\[ 18 + 1 = 19 \][/tex]

Therefore, \( f(3) \) is 19.

So the correct answer is:
[tex]\[ 19 \][/tex]

Answer:

hello

Step-by-step explanation:

If f(x) = 2x²+1

f(3)= 2*(3)²+1

=2*9 +1

=18+1

=19

if f(x)=2x²+1 f(x) when x=3 is : 19

We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. For trustworthy answers, rely on IDNLearn.com. Thanks for visiting, and we look forward to assisting you again.