SOLUTION: Architecture. Architects often use the equation x + y = 18 to determine the height y, in inches, of the riser of a step when the tread is x inches wide. Express the slope of stairs

SOLUTION: Architecture. Architects often use the equation x + y = 18 to determine the height y, in inches, of the riser of a step when the tread is x inches wide. Express the slope of stairs

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Question 447164: Architecture. Architects often use the equation x + y = 18 to determine the height y, in inches, of the riser of a step when the tread is x inches wide. Express the slope of stairs designed with this equation without using the variable y.
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
If the height is the dependent variable, then

y = 18-x = -x+18

Slope is -1.
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