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Darya [45]
3 years ago
14

I need help on these problems THANK YOUUU

Mathematics
2 answers:
Rudiy273 years ago
8 0

Answer:

2. m = 1

3. y - (-1) = 5 (x - 4)

4. y = 5x - 21

Step-by-step explanation:

<u>Work for #2</u>

m (slope) = \frac{y2 - y1}{x2 - x1} \fracyx}

m = \frac{-1 - 2}{-2 -1}

m = \frac{-3}{-3}

m = 1

<u>Work for #3</u>

y = -1/5x + 3 and through (4, -1)

The slope of a perperndicular line is the negative reciprocal. So, it is 5.

Plug this number into point-slope form. Use the points you were given (4,-1) in the equation as well.

y - y1 = m (x - x1)

y - (-1) = 5 (x - 4)

y + 1 = 5x - 20 (Only if you are supposed to simplify it)

<u>Work for #4</u>

Finish solving the equation

y - (-1) = 5 (x - 4)

y + 1 = 5x - 20

y = 5x - 20 - 1

y = 5x - 21

pychu [463]3 years ago
5 0

Answer:

1 is (2.-2) but i cant see the rest

Step-by-step explanation:

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Which equation is equivalent to y= Ax + By = C
Dahasolnce [82]

Answer:

slope intercept form

Step-by-step explanation:

that's what ax + by = c is

<h2><u><em>xoxo, </em></u></h2><h2><u><em>your highness...</em></u> </h2>
4 0
2 years ago
What is the standard numeral for nineteen million,seven hundred thousand
ivolga24 [154]
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7 0
3 years ago
Find the slope y - 2 = -3 (x+1) <br><br> (show steps!!)
Vsevolod [243]

y - 2 = -3 (x+1)

point slope form

y-y1 = m(x-x1)

looking at the above equation

the slope is -3

6 0
2 years ago
If y varies directly as x and y=288 when x=16 determine the value of y when x-13
Ray Of Light [21]
Y = kx is the direct variation equation
Substitute the x and y that are given to find k then write your new equation in terms of y with the k.

288 = k(16) divide by 16 to find k
18 = k
Now write the new equation
y = 18x

y = 18(13) or y = 18(-13) I'm not sure by what you have typed if that is supposed to be and equal sign or a negative.
y = 234 OR y = -234
5 0
3 years ago
Trei copii au impreuna 45 de lei .
Ainat [17]

Answer:

Primul copil are 6 lei, al doilea are 12 lei, al treilea are 27 de lei.

Step-by-step explanation:

Lăsați suma primului copil să fie x.

Lăsați suma al doilea copil să fie y.

Lăsați suma al treilea copil să fie z.

Trei dintre ei au 45 de lei în total.

Aceasta înseamnă că:

x + y + z = 45 ________(1)

Al doilea are de două ori valoarea primului:

y = 2x

Al treilea are cu 15 lei mai mult decât al doilea:

z = 15 + y

=> z = 15 + 2x

Puneți valoarea y și z în (1):

x + 2x + 15 + 2x = 45

5x = 45 - 15 = 30

x = 30 / 5 = 6 lei

=> y = 2 * 6 = 12 lei

=> z = 15 + 12 = 27 lei

Primul copil are 6 lei, al doilea are 12 lei, al treilea are 27 de lei.

7 0
3 years ago
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