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3 years ago

What is the equation for the line?

Mathematics

2 answers:

Dima020 [189]3 years ago

8 0

Answer:

y=8x

Step-by-step explanation:

y=mx+b

m=-16/-2=8

b=0

y=8x

andreyandreev [35.5K]3 years ago

3 0

Answer:

y=8x

Step-by-step explanation:

Every time x increases by 1, y is increasing by 8.

To find this, find a point on the graph along the line, for instance (1,8) or (2,16), and find where x equals 1 and use the other number (in this case 8) and that should be the number that goes beside x in the equation.

Sorry if I don't explain it well. Good luck! Try using Khan Academy if you still need help.

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Lady bird [3.3K]

Answer:

7-8i

Step-by-step explanation:

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3 years ago

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Dima020 [189]

Answer:

y < -2x - 4

Step-by-step explanation:

This is a guessing game. You just have to plug and chugg to find your answer.

Look at the table they gave you and plug in the x and y value into the given equations and see if they're true or not.

For example, I used the point x=-2 and y=1 from the table.

I plug that into y < -2x - 4 and got a false statement:

y < -2x - 4

(1) < -2(-2) - 4

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1 < 0

this is false because one cannot be less than zero. Therefore this equation is the wrong one.

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3 years ago

PLEASE HELP! What is the area of triangle BCD in exact form? 35 points!

vampirchik [111]

This is a 30-60-90 triangle. The short leg is given to us as 5

The long leg is equal to sqrt(3) times the short leg

long leg = sqrt(3)*(short leg)
long leg = sqrt(3)*5
long leg = 5*sqrt(3)

The base is 5. The height is 5*sqrt(3)
b = 5
h = 5*sqrt(3)

Use this to find the area
A = b*h/2
A = 5*5*sqrt(3)/2
A = 25*sqrt(3)/2
which is the exact area in terms of a radical

You can write it out as $\frac{25\sqrt{3}}{2}$

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