Unit 1: Slope and Rate of Change. - St John Brebeuf
Unit 1: Slope and Rate of Change. - St John Brebeuf
Unit 1: Slope and Rate of Change. - St John Brebeuf
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Apprenticeship <strong>and</strong> workplace Math 11<br />
<strong>St</strong>.<strong>John</strong> <strong>Brebeuf</strong><br />
1.2: Grade,Angle <strong>of</strong> Elevation <strong>and</strong> Distance:<br />
Grade: The slope <strong>of</strong> a physical feature such as a<br />
road or hill.<br />
Usually measured as a %<br />
The steeper the slope the higher its %<br />
To convert from a slope to a % grade x 100<br />
% grade = x 100<br />
Tangent Ratio:<br />
Hypotenuse<br />
Opposite<br />
<br />
Angle <strong>of</strong> Elevation<br />
Adjacent<br />
Tan = =<br />
Angle <strong>of</strong> Elevation:The angle formed by a horizontal line<br />
segment <strong>and</strong> an inclined line segment<br />
% grade = tan x 100<br />
S.Duffy Page 5
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