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LUCKY_DIMON [66]
3 years ago
9

Which of the following equations describes the graph?​

Mathematics
1 answer:
Strike441 [17]3 years ago
5 0

Answer:

y = -2(x - .5)^2 - 2.5

Step-by-step explanation:

You first want to find the vertex of the parabola, which is found at (.5, -2.5)

You then want to add this to the function "y = x"

y = (x - .5) - 2.5

You would then notice this would need to be a quadratic formula, so you would add the squared to the equation, and make the leading coefficient negative because it is facing downwards.

y = -(x - .5)^2 - 2.5

Finally, you would notice that the graph has a y-intercept of -3. You can Vertically stretch the equation y a factor of 2 to finish the graph.

y = -2(x - .5)^2 - 2.5

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Solve the following:<br><br>a) 3x+4/2 = 9.5<br><br><br>b) 7+2x/3= 5​
kodGreya [7K]

Answer:

A) x=2.5

B) x=-3

Step-by-step explanation:

3 0
2 years ago
I forgot how to find a function in a graph ​
azamat

Answer:

This graph is NOT a function.

Step-by-step explanation:

A graph is a function only if there is exactly one y-value for every x-value. In this case, there are many x-values that have two y-values, making this graph not a function.

Let me know if this helps!

4 0
3 years ago
Plzzzzz answer this question about density mass and volume!!!!!!!!!
nataly862011 [7]

Answer:

13.896 kg

Step-by-step explanation:

You can find the mass of the bar by first finding the volume.

V = BH

where B = area of the base (the trapezium), and

H = height (distance trapezium between bases)

The area of a trapezium is

A = (b1 + b2)h/2

where b1 and b2 are the lengths of the bases of the trapezium (the parallel sides), and

h = the altitude of the trapezium (distance between the bases of the trapezium)

V = (b1 + b2)h/2 * H

V = (12 cm + 6 cm)(5 cm)/2 * 16 cm

V = 720 cm^3

The volume of the bar is 720 cm^3.

Now we use the density and the volume to find the mass.

density = mass/volume

mass = density * volume

mass = 19.3 g/cm^3 * 720 cm^3

mass = 13,896 g

Now we convert grams into kilograms.

1 kg = 1000 g

mass = 13,896 g * (1 kg)/(1000 g)

mass = 13.896 kg

Answer: 1.3896 kg

6 0
3 years ago
Write the exponent for the expression. <br> 1/8 x 1/8
kompoz [17]

Answer:

8^{-2}

Step-by-step explanation:

2^{-2} = 1/4

So:

8^{-2} = 1/8*1/8

5 0
3 years ago
The slope of the line that passes through the points (3,14) and (7,9) is
Akimi4 [234]

Answer:

m = -1.25

Step-by-step explanation:

Slope =  (Y2-Y1)  =  (9-14)  =  (-5)  = -1.25

              (X2-X1)      (7-3)       (4)

<em>BRAINLIEST PLS!!!</em>

6 0
3 years ago
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