It's up to you what you chose for A and or B because 0 slope of a line is for a flat horizontal line and an undefined slope is for a flat vertical line
With this information you should chose D regardless but that's also up to you I would though and E is correct.
Answer:
Step-by-step explanation:
Swap sides:
Multiply to both sides by 6:
Group like terms:
Simplify the fraction:
Multiply the fractions
Simplify the arithmetic:
Answer
B is the answers
Step-by-step explanation:
Answer:
Table1
-1 undefined since we cannot take the sqrt of a negative number
0 0
1 -1
4 -2
Step-by-step explanation:
f(x) = sqrt(x)
A reflection over the x axis is-f(x)
g(x) = -sqrt(x)
x -sqrt(x)
-1 undefined since we cannot take the sqrt of a negative number
0 0
1 -1
4 -2
Answer:
We have the system:
x ≤ 7
x ≥ a
Now we want to find the possible values of a such that the system has, at least, one solution.
First, we should look at the value of a where the system has only one solution:
We can write the 2 sets as:
a ≤ x
x ≥ 7
So, writing both together:
a ≤ x ≤ 7
if a is larger than 7, we do not have solutions.
then a = 7 gives:
7 ≤ x ≤ 7
Here the only solution is 7.
Now, if a is smaller than 7, for example 5, we have:
5 ≤ x ≤ 7
Now x can take different values, so we have a lot of solutions.
Then the restrictions for a, such that the system has at least one solution, is:
a ≤ 7.
