The function f(x) = (x - 4)(x - 2) is shown.
1 answer:
Answer:
all real numbers greater can or equal to -1
Step-by-step explanation:
Given the function: f(x) = (x - 4)(x - 2)
=> its root: x =4 and x = 2
We convert the factored form into standard form: f(x) =
As can be seen, the parameter a in the function is positive => the graph of it open up over its domain.
and then we convert the factored form into vertex form: f(x) = - 1
<=> when x =3 we have f(x) =1 and f(x) =-1 is the lowest point of the function
=> the range of the function: all real numbers greater can or equal to -1
Hope it will find you well.
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From the diagram, we can clearly see that we need to simply solve for the length marked x in order to find the distance between the foot of the ladder to the base of the wall.
Remember SOHCAHTOA. We can apply here the concept of cosine since we have the angle. Incorporationg x into the equation, we can simply make use of the relation cosine 72° = adjacent/hypotenuse.
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