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3 years ago

9

Which is the equation of the line?

2 answers:

ohaa [14]3 years ago

7 0

Y=-3x+9 is the answer.

Nana76 [90]3 years ago

6 0

The y-intercept (where the line passes the y-axis) is positive 9.

The line is decreasing so the slope is negative.

The slope of a line can be found by the equation :

y2 - y1 / x2 - x1

Substitute the coordinates.

0 - 9 / 3 - 0

-9 / 3

-3

The slope is -3.

So, your equation in slope - intercept form is :

y = -3x + 9

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4 years ago

A right triangle has a leg length of 21 inches and a hypotenuse length of 29 inches. What is the length of the other leg?

Shalnov [3]

Answer:

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3 years ago

One number added to three times another number is 24. Five times the first number added to three times to other number is 36. Fi

Marrrta [24]

The numbers are 3 and 7

Step-by-step explanation:

Let the first number be x and the second number be y

Then according to given statement

One number added to three times another number is 24

x+3y=24 Eqn 1

Five times the first number added to three times to other number is 36

5x+3y=36 Eqn 2

Subtracting Equation 1 from equation 2

$5x+3y-(x+3y)=36-24\\5x+3y-x-3y=12\\4x=12$

Dividing both sides by 4

$\frac{4x}{4}=\frac{12}{4}\\x=3$

Putting x=3 in equation 1

$3+3y=24\\3y=24-3\\3y=21$

Dividing both sides by 3

$\frac{3y}{3} = \frac{21}{3}\\y=7$

Hence,

The numbers are 3 and 7

Keywords: Linear equations, Variables

Learn more about linear equations at:

#LearnwithBrainly

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4 years ago