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Chapter 4: Q. 455 (page 539)
find an equation of a line parallel to the line y=3x+4 and contains the point (2,5). Write the equation in slope鈥搃ntercept form.
Equation of the line is y=3x-1
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The equation models the relation between the amount of Tuyet's monthly water bill payment, , in dollars, and the number of units of water, , used.
(a) Find Tuyet's payment for a month when units of water are used.
(b) Find Tuyet's payment for a month when units of water are used.
(c) Interpret the slope and -intercept of the equation.
(d) Graph the equation.
Margie is planning a dinner banquet. The equation models the relation between the cost in dollars, C of the banquet and the number of guests, .
(a) Find the cost if the number of guests is 50 .
(b) Find the cost if the number of guests is 100 .
(c) Interpret the slope and C-intercept of the equation.
(d) Graph the equation.
In the following exercises, graph the line of each equation using its slope and y-intercept.
Plot each point in a rectangular coordinate system and identify the quadrant in which the point is located:
鈸� 鈸� 鈸� 鈸� 鈸�
Plot each point in a rectangular coordinate system and identify the quadrant in which the point is located: 鈸� 鈸� 鈸� 鈸� 鈸�
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