Answer:
The value of x = -1 makes the denominator of the function equal to zero. That is why this value is not included in the domain of f(x)
Step-by-step explanation:
We have the following expression
Since the division between zero is not defined then the function f(x) can not include the values of x that make the denominator of the function zero.
Now we search that values of x make 0 the denominator factoring the polynomial
We need two numbers that when adding them get as a result -1 and when multiplying those numbers, obtain -2 as a result.
These numbers are -2 and 1
Then the factors are:
We do the same with the numerator
We need two numbers that when adding them get as a result 4 and when multiplying those numbers, obtain 3 as a result.
These numbers are 3 and 1
Then the factors are:
Therefore
Note that only if
So since is not included in the domain the function has a discontinuity in
Answer:
Step-by-step explanation:
area of the rectangle = l×b = 40m
let the breadth be 10m
l = ?
l × 10 = 40
l = 40/10
l = 4m
so the length of the 4 sides = 10m, 10m, 4m, and 4m
since opposite sides of a rectangle are equal
hope this helps
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T(2)=5-2(2)
t(2)=3(2)
t(2)= 6
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Answer:
I don't know if you want to be a good
Answer:
True
Step-by-step explanation:
If a is negative then the shape of the graph is an upside down U, which intersects the x-axis. If a is positive it will never cross the X axis.