Answer:
f(x) = -2|x| + 1
Step-by-step explanation:
The graph shifts one unit up the y axis since there's a value outside the absolute value which directly adds 1 to it.
If you begin with the basic equation of a vertical parabola: y-k=a(x-h)^2, where (h,k) is the vertex, then that equation, when the vertex is (-3,-2), is
y + 2 = a (x + 3)^2. If we solve this for y, we get
y = a(x+3)^2 - 2. Thus, eliminate answers A and D. That leaves B, since B correctly shows (x+3)^2.
Step-by-step explanation:
the average change rate of a function f(x) in an interval [x1 .. x2] is
(f(x2) - f(x1)) / (x2 - x1)
in our case that is
(7000 - 2500) / (20 - 0) = 4500 / 20 = 225
the population changed in average by 225 people per year from 1900 to 1920.
Answer:
730000000 lbs?
Step-by-step explanation:
The new equation after the expression equivalent to x from the first equation is substituted into the second equation is:
Step-by-step explanation:
We will solve the initial steps for substitution method for finding the correct answer
Given equations are:
From equation one
Putting x = -4y-9 in equation 2
Hence,
The new equation after the expression equivalent to x from the first equation is substituted into the second equation is:
Keywords: Linear equations, variables
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