Simplifying Radical Expressions Worksheet With Answers Page 33
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38The domain is all real numbers, and the range is {y | y ≥ 0}.
10-2 Simplifying Radical Expressions
70.
SOLUTION:
This is a piecewise-defined function. Make a table of values. Be sure to include the domain values for which the
function changes.
x
-1
0
1
2
3
g(x)
-2
-1
0
1
-5
Notice that both functions are linear.
The domain is all real numbers, and the range is {y | y ≤ 1}.
Solve each equation by using the Quadratic Formula. Round to the nearest tenth if necessary.
2
71. x
− 25 = 0
SOLUTION:
For this equation, a = 1, b = 0, and c = –25.
The solutions are 5 and –5.
2
72. r
+ 25 = 0
SOLUTION:
For this equation, a = 1, b = 0, and c = 25.
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