Warm up – Solve by Factoring. Questions over hw? (worksheet)
Questions on 1.2 HW?
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Transcript of Questions on 1.2 HW?
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Questions on 1.2 HW?
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Warm-Up Write a rule for the function
X 0 1 2 3
Y 3 5 7 9
X 16 14 12 10
Y 7 6 5 4
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1.3Represent Functions as Graphs
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Example 1:
Graph the function y = 3x with domain 0, 1, 2 , 3, and 4 Step 1: make a table Step 2: plot a point for each ordered pair.
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X
Y
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Your Turn: Graph the function
y = -2x + 7Domain: 1, 2, 3, 4, and 5
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Example 2: Write a rule for the
function represented by the graph. Identify the domain and range of the function.
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Your Turn: Write a rule for
the function represented by the graph. Identify the domain and range of the function.
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1.3 Homework:
P. 13 #1-14 P. 15 #7-14
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Questions on 1.3 HW??? (p.13 and p.15)
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Warm-up Write a rule for the function representedby the graph.
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1.4 Graph Using Intercept
1.1-1.4 Quiz: Wednesday
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Vocabulary X-intercept: the x-coordinate of a
point where a graph crosses the x-axis To find the x-intercept plug a zero in for
y. Y-intercept: the y-coordinate of a
point where a graph crosses the y-axis To find the y-intercept plug a zero in for
x.
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Example 1:
Find the x- and y-intercepts of the graph 7x – 3y = 21
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Your Turn:
Find the x- and y-intercepts for the graph of -4x + 3y = 24
y = 1/5x – 3
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Example 2:
Identify the intercepts of the graph.
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Your Turn:
Identify the intercepts of the graph.
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Example 3:
Graph 3x + 2y = 6. Label the points where the line crosses the axes.
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Your Turn:
Graph x – 1/2y = 1. Label the points where the line crosses the axes.
(1,0)
(-2,0)
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1.4 Homework
P. 19 (all problems)