You know that f(x) or y is 1, and you are trying to find all the numbers on the x-axis that has a y coordinate of 1. Based on the graph, when x is 2 and -1, the y coordinate is 1, so your answer is B.
Answer:
All of the above
Step-by-step explanation:
Answer:
4x + 4 <em>or</em> (2x) + (2x+4)
Step-by-step explanation:
Ok so east is the right side. The length of the east side would be (2x) + (2x+4). You can then simplify this to 4x + 4 but I don't know if your teacher wants you to do that. Hope this helps!
Answer:
1. 
2.
and 
Step-by-step explanation:
We have the expression
to find the solutions we have to clear
. Then,
Add 64 in both sides of the equation.

Now we have to re-write the equation:
⇒
Then,

Apply square root on both members

Now substitute back 
1. 
2. 
Solving for x:
1. 
2. 
Then the solutions for
are:

To find the x intercepts of the graph
we have to replace with y=0.
This means: 
We already found the solutions for the expression, but we have to consider only the real solutions.

Because in a graph we can't have imaginary solutions.
Then the x intercepts of the graph are:
and 
The graph of the function is: