the manufacturing cost of a cell phone was $124 cellars first marked up the cost by 20% sales were poor , so sellers decreased t
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Answer:
i) D: All real numbers
ii) R:
iii) Y-int: b=2
Step-by-step explanation:
i) The given absolute value function is
The domain is all values of x that makes the function defined.
The absolute value function is defined for all values of x.
The domain is all real numbers.
ii) The given function is
The function has vertex .
The function is reflected in the x-axis.
This means the vertex is the maximum point on the graph of the function.
The maximum y-value is 5.
The range is therefore or
iii) To find the y-intercept, put into the function.
The y-intercept is (0,2) or
See attachment for graph.
