document.write( "Question 1174250: A medical supply company found out that there is a demand on a new brand of alcohol in the market.There was demand for 500mL and 1L with the amount Php 80
\n" ); document.write( "and Php130, respectively
\n" ); document.write( " A.What is the slope?
\n" ); document.write( " B.What is the linear function represent the given problem if x is the number of alcohol and y is the price of alcohol?
\n" ); document.write( " C.How much does 750mL cost?
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Algebra.Com's Answer #850701 by CPhill(1987)\"\" \"About 
You can put this solution on YOUR website!
Let's break down this problem step-by-step.\r
\n" ); document.write( "\n" ); document.write( "**Understanding the Data**\r
\n" ); document.write( "\n" ); document.write( "* We have two data points:
\n" ); document.write( " * (500 mL, Php 80)
\n" ); document.write( " * (1000 mL, Php 130)\r
\n" ); document.write( "\n" ); document.write( "**A. Finding the Slope**\r
\n" ); document.write( "\n" ); document.write( "* Let's use the slope formula: m = (y2 - y1) / (x2 - x1)
\n" ); document.write( " * Where:
\n" ); document.write( " * (x1, y1) = (500, 80)
\n" ); document.write( " * (x2, y2) = (1000, 130)\r
\n" ); document.write( "\n" ); document.write( "* Substitute the values:
\n" ); document.write( " * m = (130 - 80) / (1000 - 500)
\n" ); document.write( " * m = 50 / 500
\n" ); document.write( " * m = 1/10 or 0.1\r
\n" ); document.write( "\n" ); document.write( "* Therefore, the slope is 0.1 (Php per mL).\r
\n" ); document.write( "\n" ); document.write( "**B. Finding the Linear Function**\r
\n" ); document.write( "\n" ); document.write( "* We'll use the point-slope form of a linear equation: y - y1 = m(x - x1)
\n" ); document.write( " * Using the point (500, 80) and the slope m = 0.1:
\n" ); document.write( " * y - 80 = 0.1(x - 500)
\n" ); document.write( " * y - 80 = 0.1x - 50
\n" ); document.write( " * y = 0.1x - 50 + 80
\n" ); document.write( " * y = 0.1x + 30\r
\n" ); document.write( "\n" ); document.write( "* Therefore, the linear function is y = 0.1x + 30.\r
\n" ); document.write( "\n" ); document.write( "**C. Finding the Cost of 750 mL**\r
\n" ); document.write( "\n" ); document.write( "* Substitute x = 750 mL into the linear function:
\n" ); document.write( " * y = 0.1(750) + 30
\n" ); document.write( " * y = 75 + 30
\n" ); document.write( " * y = 105\r
\n" ); document.write( "\n" ); document.write( "* Therefore, 750 mL of alcohol will cost Php 105.
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