Which is f(–3) for the quadratic function graphed?
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Answered by
2
Assuming the question is for any general termed equation with constants a,b,c
Now,
Let f(x) be any function
Since it is mentioned the function is quadratic so,
Let,
f(x) =ax² + bx +c
where a,b.c are any constants as in mentioned in the assumption,
So,f(-3) will be
=9a -3b + c........1
Now,
If u want the solution graphically,
Then you can convert the equation in terms of standard parabola equation
(4ay=x²)
but still if you want to find the exact value then you need to use the equation and substitute the value -3
If you have the equation though then just substitute the value of constants in equation 1 and you will get the solution
Now,
Let f(x) be any function
Since it is mentioned the function is quadratic so,
Let,
f(x) =ax² + bx +c
where a,b.c are any constants as in mentioned in the assumption,
So,f(-3) will be
=9a -3b + c........1
Now,
If u want the solution graphically,
Then you can convert the equation in terms of standard parabola equation
(4ay=x²)
but still if you want to find the exact value then you need to use the equation and substitute the value -3
If you have the equation though then just substitute the value of constants in equation 1 and you will get the solution
Answered by
2
The graph of a quadratic function gives the values of x and the corresponding values of y
f(-3) means the value of y when x = -3
We can read this from the graph by going to x= -3, we move up until we reach the graph, then we move horizontally to read the value of y.
This process is illustrated in the diagram below:
f(-3) means the value of y when x = -3
We can read this from the graph by going to x= -3, we move up until we reach the graph, then we move horizontally to read the value of y.
This process is illustrated in the diagram below:
Attachments:
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