cuki96
17.07.2019 •
Mathematics
How many pounds of nuts selling for $ 12 per lb and raisins selling for $ 6 per lb should a person combine to obtain 120 lb of a trail mix selling for $ 8 per lb?
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Ответ:
(10)lb of raisins selling for $6.
Ответ:
Option a. is the correct option.
Step-by-step explanation:
In the question given graph is y = x² which is transformed into y = -x²-5
then we can interpret the graph as below
1). y = -x²-5 is a function of a parabola.
2). Since the graph is in the form of y = ax²+b
Now if we reverse/reflect the graph on x axis then a becomes -a.
Therefore y = -x² - 5 gets reflected over the x-axis.
3) Since b represents the y-intercept, if it's negative then graph is shifted down and for positive b graph is shifted upwards. Here -5 shows the shift of 5 downwards.
Therefore option a is the correct option.