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Ad libitum [116K]
3 years ago
8

Using the function below, evaluate f(-2). * 2 points f(x) = 3x? - 5x - 2

Mathematics
1 answer:
monitta3 years ago
6 0
Okay so I'm guessing that they are two different formulas the f(x)= 3x and the f(x)= -5x-2. If that's is true then you would just have to plug in -2 to the x's. So then it would be f(x)= 3(-2) which if you solve it would give you f(x)= -6 and for the second one it would be f(x)= -5(-2)-2 so then you would solve for it and get f(x)= 8.
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Find an equation of the line having slope -2 that passes through the point (1, 5)
Alenkasestr [34]
Slope of -2, (1,5)

y = mx + b
slope(m) = -2
(1,5)...x = 1 and y = 5
now we sub and find b, the y int
5 = -2(1) + b
5 = -2 + b
5 + 2 = b
7 = b
so ur equation is : y = -2x + 7

The approximation method used to estimate a point between 2 given points is called linear interpolation. The approximation method used to estimate a point that does not lie between 2 given points is called linear extrapolation.A linear function has the form f(x) = mx + b. Its graph is a line that has slope m and y intercept at (0,b).

8 0
3 years ago
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Look at this graph.
Phoenix [80]

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Step-by-step explanation:

The slope is the difference in y-values divided by difference in x-values plus the starting constant value (500 on the graph)

700 - 600  is the difference in y-values = 100

800 - 400 is the difference in x-values  = 400

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7 0
3 years ago
[(21 + 5) ÷ 2] + 7 • (8 - 3) equals
kow [346]
[(21 + 5) ÷ 2] + 7 × (8 - 3)
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Which statement is true?
Elenna [48]

Answer:

90.7 > 9.008

Step-by-step explanation:

6 0
3 years ago
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Please if your answering it please i need it step by step please
salantis [7]
I) there are 360 degrees in a circle.  So subtract all the numbers from 360 to get the angle for econ.

That angle is 65 degrees

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Solve for x, and we get x = 864

iii) The percentage is 80 degrees out of 360 degrees or 2/9 or roughly 0.222 or 22.2%
4 0
3 years ago
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