Answer:
This should be A. -4 < x < 9.
Step-by-step explanation:
Domains are the x-values. So, you would have to look at the x axis to know your x values. I'm not a 100% sure if this is that correct answer, but here's the answer to what I know.
The graph for the given function is shown in the figure below. The domain of the function f(x) = √x is R and the range of the function is [0 +∞).
<h3>How to graph the given function?</h3>
The given function is f(x)=√x;
Consider the domain for the given function as x ∈ R; i.e., (-∞ +∞).
Then, substituting all these values in the given function results as follows:
x = -1; f(-1) = √(-1);
Since for the negative inputs, the function does not exist.
So, applying the positive values,
x = 0; f(0) = √0 = 0
x = 1; f(1) = √1 = 1
x = 2; f(2) = √2 = 1.414
x = 3; f(3) = √3 = 1.73
x = 4; f(4) = √4 = 2
x = 5; f(5) = √5 = 2.23
and so on.
So, the range of the function is [0 +∞).
On plotting all these points in the graph and connecting those points results in a curve as shown in the figure below.
Learn more about the graph of a function here:
brainly.com/question/26857518
#SPJ9
Answer:
2/3
Step-by-step explanation:
You have 6 possible outcomes. Getting 1 outcome is 1/6. You have 2 possible outcomes. Getting 1 outcome is 1/2.
Add 1/2 and 1/6 to get 2/3
3+1/x *x = 7/x*x
3x+1 = 7
3x+1-1=7-1
3x=6
3x/3 =6/3
x =2
Use ratio and proportion
80/120=x/100
cross multiply
x= 66 2/3 percent