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Which statement is true about the function f(x)= - square root of x?

Which statement is true about the function f(x)= - square root of x?-example-1
User Bunty
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2 Answers

2 votes

Answer:

it is D on Edge 2020

Explanation:

i just took final exam

User Poldixd
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2 votes

Answer:

It has the same range but not the same domain as the function
f(x) = - √(-x).

Explanation:

Recall the domain of the function is all x values which input into the function and give an output. The outputs or y values are called the range. To find the domain and range, graph the function and look at where it is on the coordinate plane.


f(x) = √(x) starts at (0,0) and curves upward and towards the right. Its domain is
x\geq 0 and its range is
y\geq 0.


f(x) = - √(x) starts at (0,0) and curves downward to the right. Its domain is
x\geq 0 still but its range is negative numbers or
y\leq 0.


f(x) = - √(-x) starts at (0,0) and curves downward to the left. Its domain is negative x values or
x\leq 0 and its range is negative values or
y\leq 0.

This means the two functions have the same range but different domains.

User Ilde
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