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madam [21]
2 years ago
12

Help me please this is due tomorrow and I do not understand the assignment

Mathematics
2 answers:
denis-greek [22]2 years ago
5 0

Answer:

4 and 5 not functions 6 function

Step-by-step explanation:

In a function, each x value can only have one y value. To test this, you can try the vertical line test. Put a vertical line on the function; if it touches only one point the graph is a function. For graph 4, the x value of 3 has y values of 1 and 4 so it is not a function. For graph 5, the x values of 1 and 5 have many y values so the graph isn't a function. For graph 6, each x value has only one y value so it is a function.

Sever21 [200]2 years ago
3 0

Answer:

4. Not a function

5. Not a function

6. Function

Step-by-step explanation:

1 -3 (correct!)

Functions do NOT have repeating x-values. Hence why you were able to determine if # 1-3 are fuctions or not.

4. Not a fuction:

(1, 2)

(2, 3)

(3, 1)

(3, 4)

As we can see, both points have the same x-values. Therefore, not a function.

5. Using our knowledge about functions, we can quickly tell that this graph is NOT a fuction.

There are many points that fall under the same x-value.

6. Function:

(1, 2)

(2, 2)

(3, 3)

(4, 4)

No repeating x-values. Therefore, a function.

Hope this helps!

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Answer:

a=16

Step-by-step explanation:

16/4+2 = 6

Thus the answer is 16

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Mr. Smith is flying his single-engine plane at an altitude of 2400 feet. He sees a cornfield at an angle of depression of 30º. W
Svet_ta [14]

Answer:

Height of the fighter plane =1.5km=1500 m

Speed of the fighter plane, v=720km/h=200 m/s

Let be the angle with the vertical so that the shell hits the plane. The situation is shown in the given figure.

Muzzle velocity of the gun, u=600 m/s

Time taken by the shell to hit the plane =t

Horizontal distance travelled by the shell =u

x

t

Distance travelled by the plane =vt

The shell hits the plane. Hence, these two distances must be equal.

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x

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u Sin θ=v

Sin θ=v/u

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−1

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4 0
3 years ago
What the mean and the median of this data set: 9,6,5,3,28,6,4,7
fgiga [73]
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(a) The curve with equation y2 = x3 + 3x2 is called the Tschirnhausen cubic. Find an equation of the tangent line to this curve
Dafna1 [17]

Answer:

  (a)  y = 9/4x -1/4

  (b)  (-2, -2), (-2, 2)

  (c)  see below

Step-by-step explanation:

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At (x, y) = (1, 2), this is ...

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  y' = 9/4

so the equation of the tangent is ...

  y = (9/4)(x -1) +2

  y = (9/4)x -1/4

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(b) At y' = 0, we have ...

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This says y' = 0 at x=0 or x=-2. (x = 0 is an extraneous solution.)

At x = -2, we have ...

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  y = ±2

So, the horizontal tangent points are (x, y) = (-2, ±2).

5 0
3 years ago
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