moving straight ahead 4.2
Post on 21-Jul-2015
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Agenda Monday, Nov. 16
homework 6 MSA p. 78 # 2 14
Daily Scribe?
Do NowTake the measurements of your stairs and find the ratio
of rise to run. Express the ratio as a decimal. Is the ratio within carpenter's guidelines?
the ratio of rise to run is between 0.45 and 0.60the rise plus the run is between 17 and 17 1/2 in.
If not, are your stairs more or less steep than the guidelines?
Problem 4.2
ratio of rise
run
PullPull
rate of change PullPull
"m" in the linear equation y = mx +b
PullPull
can be positive or negative PullPull
ratio of vertical (y) changehorizontal (x) change
PullPull
Slope
Lines that slant upward from left to right have a positive slope.
Lines that slant downward from left to right have a negative slope.
Y-intercept
How can you find the y-intercept given 2 points on the line (3,3) and (5,9)
9 3 y
5 3x
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