what is the midpoint of the x-intercepts of f(x) = (x – 2)(x – 4)? (–3,0) (–1,0) (1,0) (3,0)
the x intercepts are always on the x axis, those are the 'zeroes' or 'roots' of the function
f(x)=(x-r1)(x-r2)...(x-rn) where r1 to rn are roots or intercepts
f(x)=(x-2)(x-4)
the x intercepts are x=2 and x=4
xintercepts are (2,0) and (4,0)
what is between 2 and 4?
3
(3,0) is answer
Answer:
The correct option 4.
Step-by-step explanation:
The given function is
\(f(x)=(x-2)(x-4)\)
At x-intercepts the value of f(x) is 0.
\(0=(x-2)(x-4)\)
Using zero product property, equate each factor equal to 0.
\(x-2=0\)
\(x=2\)
\(x-4=0\)
\(x=4\)
The x-intercepts of the function are (2,0) and (4,0).
Midpoint of two points is
\(M=(\frac{x_1+x_2}{2},\frac{y_1-y_2}{2})\)
The midpoint of x-intercepts is
\(M=(\frac{2+4}{2},\frac{0+0}{2})\)
\(M=(3,2)\)
Therefore option 4 is correct.