document.write( "Question 1096981: What is the average rate of change of the height of the water in a river if the function h open parentheses x close parentheses equals minus x squared plus 4 x plus 10 describes the height of the water for time x in hours and h(x) in feet on the interval x = 0 to x = 3? \n" ); document.write( "
Algebra.Com's Answer #711380 by Boreal(15235)\"\" \"About 
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h(x)=-x^2+4x+10
\n" ); document.write( "average rate of change of a function between a and b
\n" ); document.write( "[f(b)-f(a)]/(b-a)
\n" ); document.write( "=(-9+12+10)-10 is numerator, and that is 3
\n" ); document.write( "=3-0=3 denominator
\n" ); document.write( "so average rate of change of the height is 1 foot per hour.
\n" ); document.write( "\"graph%28300%2C300%2C-1%2C5%2C-10%2C20%2C-x%5E2%2B4x%2B10%29\"
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