document.write( "Question 1206068: Find the domain and range of the function. (Enter your answers using interval notation.)
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Algebra.Com's Answer #843269 by ikleyn(52800) $\"\"$ $\"About$

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document.write( "The domain is this GIVEN interval  -5 <= x <= 7  from -5 to 7, inclusive.\r\n" );
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document.write( "In the interval form, it is the set [-5,7].\r\n" );
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document.write( "The function f(x) = 2x is a linear function, monotonically increasing.\r\n" );
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document.write( "Therefore, its range is the interval between f(-5) = 2*(-5) = -10 and f(7) = 2*7 = 14.\r\n" );
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document.write( "ANSWER.  The domain is the interval [-5,7].  The range is the interval [-10,14].\r\n" );
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