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igomit [66]
2 years ago
14

What is the answer for this questions and explain why

Mathematics
2 answers:
qwelly [4]2 years ago
7 0

Answer:

B

Step-by-step explanation:

Well you first know that your y-intercept is -2 (look on the graph) so you can automatically cancel out option A and D. Now this leaves us with B and C. The only thing that is different between the two answers is the slope. Slope = Δy/Δx (change in y divided by change in x) So from (0,-2) to the next point (4, -1) How far is the x and y? Well you go up one and to the right 4. the change in y is up one (+1) and the change in x is right 4 (+4).

You can also do this

\frac{-2-(-1)}{0-4} = \frac{-1}{-4} = 1/4\\

(y2-y1)/(x2-x1) (the numbers are subscripts)

hope that helped:)

dem82 [27]2 years ago
5 0
I think the answer is b
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The graph of a trigonometric function oscillates between y=1 and y=-7. It reaches its
madam [21]

Answer:

y = 4 sin(½ x) − 3

Step-by-step explanation:

The function is either sine or cosine:

y = A sin(2π/T x) + C

y = A cos(2π/T x) + C

where A is the amplitude, T is the period, and C is the midline.

The midline is the average of the min and max:

C = (1 + -7) / 2

C = -3

The amplitude is half the difference between the min and max:

A = (1 − -7) / 2

A = 4

The maximum is at x = π, and the minimum is at x = 3π.  The difference, 2π, is half the period.  So T = 4π.

Plugging in, the options are:

y = 4 sin(½ x) − 3

y = 4 cos(½ x) − 3

Since the maximum is at x = π, this must be a sine wave.

y = 4 sin(½ x) − 3

4 0
3 years ago
PLEASE HELP!!! deck measures 18 feet by 25 feet Garden measures 9 feet by 12 feet
velikii [3]

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Step-by-step explanation:

7 0
3 years ago
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levacccp [35]

9514 1404 393

Answer:

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Step-by-step explanation:

The form for the equation of an ellipse centered at the origin is ...

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The vertex values tell you the semi-x-axis is 4 units, and the semi-y-axis is 3 units. Then you have ...

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In case you don't remember that form, you can try any of the points in the equations. The equation that works will quickly become apparent.

5 0
2 years ago
This is the change in kinetic energy of a system in which a 16 kg object moving at 25 m/s slows to a velocity of 20 m/s.
Natalka [10]

The change in kinetic energy of the  system is 200 J

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It is given by:

Kinetic energy = (1/2)m[v - u]²

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Find out more at: brainly.com/question/12669551

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