# Let's Review: The Tools of Quantitative Chemistry - Study Questions - Page 43b: 29

a) $y= -4.00x +20.00$ b) $-4.00$

#### Work Step by Step

a) From the equation: $b=y(x=0)=20.00$ At $x=5.00$, $y=0.00$, so: $0.00=5.00m+20.00\rightarrow m=-4.00$ $y= -4.00x +20.00$ b) From the line's equation, at $x=6.00$, $y= -4.00$

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