Respuesta :
Answer: first graph is F(x) = 0.5(x-6) (x+2)
Second graph f(x) = (x - 3) ( x + 1 )
Third graph f(x) = -2(x - 1) (x + 3 )
Step-by-step explanation:
Type functions into Desmos graphing calculator and it will plot the points for you.
PLATO
The required quadratic function shown in the graph is
f(x)=0.5(x+2)(x-6).
Let us suppose the quadratic function
[tex]f(x)=a(x-\alpha )(x-\beta )[/tex]......(1)
where α and β are roots of the quadratic equation f(x)=0
What is a quadratic equation?
Any equation of the form [tex]ax^{2} +bx+c=0[/tex] is called a quadratic equation where a≠0
From the shown graph we can see the roots of f(x)=0 as:
[tex]\alpha =-2[/tex]
[tex]\beta =6[/tex]
So, (1) becomes [tex]f(x)=a(x+2 )(x-6 )[/tex].....(2)
Since the graph is intersecting the y-axis at (0, -6)
So, (0, -6) will satisfy the (2)
So put x=0 and f(x)= -6 in (2)
[tex]-6=a(0-2)(0-6)[/tex]
[tex]a=\frac{-1}{2}=0.5[/tex]
So, [tex]f(x)=0.5(x+2 )(x-6 )[/tex]
Thus, the required quadratic function shown in the graph is
f(x)=0.5(x+2)(x-6).
To get more about quadratic equations visit:
https://brainly.com/question/1214333