At a pet store, Davina counted 12 parrots out of 20 birds. Which is an equivalent ratio of parrots to birds at the pet store?
2 answers:
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Assuming you want the range of
-4cos(2x)
the range of the cosine function is -1 to 1. When that is scaled by a factor of -4, it becomes 4 to -4.
The range of F(x) is [-4, 4] in interval notation.
_____
If you want the range of
F(x) = -4cos²(x)
that range will be -4×[0, 1] = [-4, 0].
-4cos(2x)
the range of the cosine function is -1 to 1. When that is scaled by a factor of -4, it becomes 4 to -4.
The range of F(x) is [-4, 4] in interval notation.
_____
If you want the range of
F(x) = -4cos²(x)
that range will be -4×[0, 1] = [-4, 0].
Answer:
Part a) The y-intercept is the point (0,20) and the x-intercept is the point (10,0)
The graph in the attached figure
Part b) See the procedure
Step-by-step explanation:
<u><em>The questions are</em></u>
Part a) Find the intercepts and graph the function
Part b) What does each intercept represent?
Part a) Find the intercepts and graph the function
Let
x-----> the number of hamburgers
y ----> the number of hot dogs
we have
Remember that
The <u><em>y-intercept</em></u> is the value of y when the value of x is equal to zero
so
For x=0
The y-intercept is the point (0,20)
The <u><em>x-intercept</em></u> is the value of x when the value of y is equal to zero
so
For y=0
The x-intercept is the point (10,0)
Plot the intercepts and graph the line
see the attached figure
Part b) What does each intercept represent?
The x-intercept is the number of hamburgers they can buy if they buy no hot dogs
The y-intercept is the number of hot dogs they can buy if they buy no hamburgers
