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3.7 Modeling Linear Functions.notebook
1
November 05, 2015
November 5th Due Today:
Due Next Class:
Get Ready:
HW 3.7Delta Math
Unit 3: Linear Functions Lesson #: 3.7: Linear Function...Notation
1) Determine if the ordered pair (‐4,3) is a solution of 4x ‐ y = ‐13.
2) Determine if the ordered pair (‐2,‐4) is a solution of 5x ‐ 2y = ‐2.
Test on Monday
3.7 Modeling Linear Functions.notebook
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November 05, 2015
Get Ready
1) Determine if the ordered pair (‐4,3) is a solution of 4x ‐ y = ‐13.
2) Determine if the ordered pair (‐2,‐4) is a solution of 5x ‐ 2y = ‐2.
3.7 Modeling Linear Functions.notebook
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November 05, 2015
What happens when...
Let y = x + 212
How can we figure this out?
What happens when x = 2?
What will our answer represent?
3.7 Modeling Linear Functions.notebook
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November 05, 2015
What happens when x = 0?
y = x + 2 12
What happens when x = - 1?
What happens when x = 100?
What happens when y = 3?
What happens when y = -10?
What happens when y = 100?
3.7 Modeling Linear Functions.notebook
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November 05, 2015
Point (k,‐3) is on the line x ‐ 2y = ‐2.
What is the value of k?
3.7 Modeling Linear Functions.notebook
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November 05, 2015
There is a way to write out the equation of a line to show that you are always inputting an x‐value
f(x) = 3x ‐1
Function Notation
What x‐value are we putting into the equation
What happens when x = 2? What part of a point does the answer represent?
What is solving for f(x) the same as?
3.7 Modeling Linear Functions.notebook
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November 05, 2015
How can we represent all the points of a function?
Make a XY table f(x) = ‐3x ‐1
x f(x) h(x) = (1/3)xx h(x)
3.7 Modeling Linear Functions.notebook
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November 05, 2015
How can we represent all the points of a function?
Make a XY table t(x) = 2x + 1
x t(x) ‐4x + 2y = 6x y
3.7 Modeling Linear Functions.notebook
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November 05, 2015
How can we check if the point (‐5, ‐1) is on the line y = 2x + 11?
How can we find out what happens at x = 4 on the line y = 2x‐9?
What will the answer represent?
How are y = 2x‐9 and f(x) = 2x ‐ 9 different?
Then using f(x) = 2x ‐ 9, how can we determine other points on the line?
