The function shown models the depth d (in inches) of snow on the ground during the first 9 hours of a snowstorm, where t is the
time (in hours) after the snowstorm beings.
A. Graph the function and identify its domain and range. Write your answers as inequalities.
The domain is ___ and the range is ___
B. Interpret the slope and the d -intercept of the graph.
The d -intercept means that there were __ inches of snow on the ground at the start of the storm and the slope means that ___ inches of snow falls every hour during the storm.
A. Graph the function and identify its domain and range. Write your answers as inequalities.
The domain is ___ and the range is ___
B. Interpret the slope and the d -intercept of the graph.
The d -intercept means that there were __ inches of snow on the ground at the start of the storm and the slope means that ___ inches of snow falls every hour during the storm.
1 answer:
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Answer:
Allison worked 6 hours lifeguarding and 3 hours washing cars.
Step-by-step explanation:
Let
Number of hours Allison worked lifeguarding last week = x
Number of hours Allison worked washing cars last week = y
1. Last week Allison worked 3 more hours lifeguarding than hours washing cars hours, then
<u>Lifeguarding:</u>
$12 per hour
$12x in x hours.
<u>Washing cars:</u>
$8 pere hour
$8y in y hours.
2. Allison earned a total of $96, hence
You get the system of two equations:
Plot the graphs of these two equations (see attached diagram). These line intersect at point (6,3), so Allison worked 6 hours lifeguarding and 3 hours washing cars.
Answer: and
is a right angle .
Step-by-step explanation:
Given : A reflection is a transformation that maps point Q in a figure over a line, AB, such that for point C at the intersection of AB and QQ'.
We know that reflection creates a image equidistant from the line of reflection.
Thus,
Also in reflection , a line drawn from the point is perpendicular to the line of reflection.
Therefore, is a right angle
