Monthly Temperature The data below represent the average monthly temperatures for Phoenix, Arizona. Draw a scatter plot of the data for one period. Find a sinusoidal function of the form y = A sin ( ω x − ϕ ) + B that models the data. Draw the sinusoidal function found in part (b) on the scatter plot. Use a graphing utility to find the sinusoidal function of best fit. Graph the sinusoidal function of best fit on the scatter plot. Month , x Average Monthly Temparature , ∘ F January, 1 56 February , 2 60 March, 3 65 April , 4 73 May , 5 82 June , 6 91 July , 7 95 August , 8 94 September , 9 88 October , 10 77 November , 11 64 December , 12 55
Monthly Temperature The data below represent the average monthly temperatures for Phoenix, Arizona. Draw a scatter plot of the data for one period. Find a sinusoidal function of the form y = A sin ( ω x − ϕ ) + B that models the data. Draw the sinusoidal function found in part (b) on the scatter plot. Use a graphing utility to find the sinusoidal function of best fit. Graph the sinusoidal function of best fit on the scatter plot. Month , x Average Monthly Temparature , ∘ F January, 1 56 February , 2 60 March, 3 65 April , 4 73 May , 5 82 June , 6 91 July , 7 95 August , 8 94 September , 9 88 October , 10 77 November , 11 64 December , 12 55
Solution Summary: The author explains how to sketch the scattered plot using a graphing calculator.
Monthly Temperature The data below represent the average monthly temperatures for Phoenix, Arizona.
Draw a scatter plot of the data for one period.
Find a sinusoidal function of the form
y
=
A
sin
(
ω
x
−
ϕ
)
+
B
that models the data.
Draw the sinusoidal function found in part (b) on the scatter plot.
Use a graphing utility to find the sinusoidal function of best fit.
Graph the sinusoidal function of best fit on the scatter plot.
Month
,
x
Average
Monthly
Temparature
,
∘
F
January,
1
56
February
,
2
60
March,
3
65
April
,
4
73
May
,
5
82
June
,
6
91
July
,
7
95
August
,
8
94
September
,
9
88
October
,
10
77
November
,
11
64
December
,
12
55
Definition Definition Representation of the direction and degree of correlation in graphical form. The grouping of points that are plotted makes it a scatter diagram. A line can be drawn showing the relationship based on the direction of points and their distance from each other.
Use Euler's method to numerically integrate
dy
dx
-2x+12x² - 20x +8.5
from x=0 to x=4 with a step size of 0.5. The initial condition at x=0 is y=1. Recall
that the exact solution is given by y = -0.5x+4x³- 10x² + 8.5x+1
Find an equation of the line tangent to the graph of f(x) = (5x-9)(x+4) at (2,6).
Find the point on the graph of the given function at which the slope of the tangent line is the given slope.
2
f(x)=8x²+4x-7; slope of the tangent line = -3
Chapter 5 Solutions
Pearson eText for Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry -- Instant Access (Pearson+)
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