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Elan Coil [88]
3 years ago
7

Find the equation of the line using the exact numbers

Mathematics
2 answers:
bearhunter [10]3 years ago
8 0

It wants you to write the answer in slope intercept form

y = mx + b

m is the slope (\frac{rise}{run})

b is the y-intercept (where the line intersects the y axis)

The rise is 1

The run is -4 (this is negative because it runs from right to left)

^^^Both of these can be seen labeled in pink on the graph below

Slope: \frac{-1}{4} = -0.25

^^^This has a negative slope because the line is decreasing from left to right

Y - intercept: (0, - 6) <<< b will just be -6

^^^Can be seen labeled in green on the graph below

We know that m (slope) is  \frac{-1}{4} (aka -0.25)and that b is -6. You can plug this into the equation y = mx + b:

y =  \frac{-1}{4}x - 6

OR

y = -0.25x - 6

Hope this helped!

~Just a girl in love with Shawn Mendes

Anit [1.1K]3 years ago
3 0

Answer:

y = -0.25x - 6

Step-by-step explanation:

You can either just read off the slope m = -0.25 and the intersection with the vertical n = -6 or you form a system of equations from points you choose on the graph. For example:

(0,-6);(4,-7)

The general equation for a line:

y = m*x + n

The two points on the graph form a system of two equations:

1. -6 = m*0 + n

2. -7 = m*4 + n

You can read off n right away fro equation 1:

n = -6

Plugging n into equation 2:

-7 = m*4 - 6 => -1 = m*4 => m = -1/4

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Find the volume of the square pyramid below.
miv72 [106K]

Hello!

\bf ANSWER

The volume of the square pyramid is approximately \boxed{ \bf 19.19~km^3}

____________________________________________________________

\bf EXPLANATION

V = a^{2}\frac{h}{3}

First, we must find the area of the square base.

A = l * w

A = 3.5 * 3.5

A = 12.25 km^2

The area of the base is 12.25 km^2. Now, multiply the base area by the perpendicular height. Then divide by 3.

V = (12.25 * 4.7) / 3

V = 19.1916666667

V ≈ 19.19 km^3



7 0
3 years ago
Solve this following system by graphing <br> X-y=4<br> X+y=2
OverLord2011 [107]

Answer:

The answer is x = 3 and y = -1

Step-by-step explanation:

If you were to graph the two lines, their equations would be y = x - 4 and y = -x + 2. The two lines intersect at the point (3, -1), so the solution to the system is x = 3 and y = -1.

5 0
2 years ago
10)
Oxana [17]

Answer:

I think it is 2 hours

Step-by-step explanation:

because if you have a whole 3 more hours of work you will get 900 bricks layd and if you minus a hour it might be free srry if it is wrong im kinda dumb

8 0
3 years ago
So I need help with 1 over x minus 8 so like 1/x-8 this is a negative exponent
Trava [24]

Answer and Step-by-step explanation:

one divided by (in parentheses) x minus eight should look like this:

\frac{1}{x-8}

This is a graph of this expression.

#teamtrees #WAP (Water And Plant)

8 0
2 years ago
To eliminate the y-terms and solve for x in the fewest steps, by which constants should the equations be multiplied by before ad
vovikov84 [41]

Answer:

use -9 to multiply the first equation

use -4 to multiply the second equation.

Step-by-step explanation:

5x-4y=28.....eqn (1)×-9

3x-9y=30....eqn(2)×-4

-45x+36y=-252

-(-12x+36y=-120)

therefore, -33x÷33 =-132÷-33

x=4.

substitute (x=4) in any of the equation. I'm just going to use eqn 1.

5x-4y=28

5(4)-4y=28

20-4y=28

-4y =28-20

-4y÷-4 = 8÷-4

y=-2

so, x=4, y=-2

Note: for proof of answers substitute the answers for x and y and see if you have the same result...e.g

5(4)-4(-2)=28.

6 0
3 years ago
Read 2 more answers
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