Answer:
[tex]f(3) = 68[/tex]
Step-by-step explanation:
Here is the original equation:
[tex]f(x) = 7x^{2} + 5[/tex]
Solving
You want to know what f(3) is so plug in 3 for x in the equation.
[tex]f(3) = 7(3)^{2} + 5[/tex] Square the 3 first
[tex]f(3) = 7(9) + 5[/tex] Multiply 7 by 9
[tex]f(3) = 63 + 5[/tex] Add 63 to 5
[tex]f(3) = 68[/tex]
The value of f(3) for function f(x) = 7x² + 5 will be 68.
A certain kind of relationship called a function binds inputs to essentially one output.
A function can be regarded as a computer, which is helpful.
In other words, the function is a relationship between variables, and the nature of the relationship defines the function for example y = sinx and y = x +6 like that.
a mathematical relationship that pairs each element of the same or another set with exactly one from the first set.
In another meaning, a function is a relation specifically for the given set of variables.
Given the function
f(x) = 7x² + 5
By substituting x = 3 ,
f(3) = 7(3)² + 5
f(3) = 7(9) + 5
f(3) = 63 + 5
f(3) = 68
Hence the value of f(3) will be 68.
For more about the function,
brainly.com/question/23712366
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