Answer:
Option (2)
Step-by-step explanation:
Given functions are,
c(x) =
d(x) = x + 3
Equation of the composite function will be,
(cd)(x) = c(x) × d(x)
=
=
This function is defined only when denominator is not equal to zero.
(x - 2) ≠ 2
Therefore, for real numbers except x = 2 will be the domain of the composite function.
Option (2) will be the answer.
The area of a rectangle is the width times the length:
The perimeter is twice the sum of the dimensions:
Answer:
<em>y = 3x</em>
Step-by-step explanation:
<u>Equation of a Line</u>
Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:
The point-slope form of the equation of a line is:
y - k = m ( x - h )
Where m is the slope and (h,k) is a point through which the line passes.
We are given the following values of the function: f(-1)=-3 and f(2)=6. The points are (-1,-3) and (2,6). The slope is:
Now find the equation of the line using the second point:
y - 6 = 3 ( x - 2 )
Operating:
y - 6 = 3x - 6
Simplifying:
y = 3x
