Find the value of f(x) = [2.7] a. 2 b. 2.7 c. 3
1 answer:
The correct answer is A.
EXPLANATION
The given function is called the greatest integer function.
That is
f(x)=[x]
f(2.7)=[2.7]=2
The input is 2.7, the output
is the greatest integer that is less than or equal to 2.7
All integers less than 2.7 are
The greatest of all of them is 2.
In programming... The int variable behaves like this function.
int(2.7) will give you 2
Simply put that function gives you the integer part of whatever is in it.
EXPLANATION
The given function is called the greatest integer function.
That is
f(x)=[x]
f(2.7)=[2.7]=2
The input is 2.7, the output
is the greatest integer that is less than or equal to 2.7
All integers less than 2.7 are
The greatest of all of them is 2.
In programming... The int variable behaves like this function.
int(2.7) will give you 2
Simply put that function gives you the integer part of whatever is in it.
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a) The point-slope form of the equation of a line through point (h, k) with slope m is
y - k = m(x - h)
In point-slope form, the equation of the line through (-3, -7) with slope -6/5 is
y + 7 = (-6/5)(x + 3)
b) The graph of
y = |x|-4
represents a translation downward 4 units of the graph of
y = |x|
It retains the same general shape and axis of symmetry, but will have two (2) x-intercepts instead of one (1).
y - k = m(x - h)
In point-slope form, the equation of the line through (-3, -7) with slope -6/5 is
y + 7 = (-6/5)(x + 3)
b) The graph of
y = |x|-4
represents a translation downward 4 units of the graph of
y = |x|
It retains the same general shape and axis of symmetry, but will have two (2) x-intercepts instead of one (1).