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Sauron [17]
3 years ago
10

Use the given conditions to write an equation for the line in point-slope form and in slope-interception for. Passing through (8

,-4) and perpendicular to the line whose equations is y=1/5x+4
Mathematics
1 answer:
laila [671]3 years ago
4 0
Hello
<span>an equation for the line in​ point-slope form and general form is :
y = ax+b   a : </span>slope  ; the <span>Passing through (x' ; y')
</span>y' = ax'+b 
y-y' =a(x-x')      and : x' =8   y' = -4
calculate a :
let :  y = ax+b .....(D)
   ....(D')   y = (1/5)x+4
.(D) perpendicular to(D') : slope (D) × slope (D') = -1 

 slope (D') = 1/5
slop(D)×(1/5) = -1
slope (D) = -5
equation for the line    :   y-y' =a(x-x') 
y+4 =(-5) (x-8)
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Paha777 [63]

Answer:

Is is Infinitely many solutions so 0=0

<em><u>Step-by-step explanation:</u></em>

<h3>First we have to rearrange/simplify the equations:</h3>

Equation 1: 4y - 3x = -20

Equation (2):  y - 3x/4  = -5

<h3>Then you remove the fractions by multiplication: </h3>

Multiply equation (2) by 4

<h3>The Equations now look like this: </h3>

Equation 1: 4y - 3x = -20

Equation (2): 4y - 3x = -20

<h3>Solve for y on Equation (2):</h3>

y = <u><em>3x/4 - 5</em></u>

<h3>Then plug in this for the y in Equation 1 and then solve:</h3>

4•(<u><em>3x/4-5</em></u>) - 3x = -20

Therefore the answer leads to:

Infinitely many solutions, 0=0

Hope this helped :')

4 0
2 years ago
3=c/5+2... how do I solve for c??
expeople1 [14]
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3 = c/5 + 2
3 = c/7
21/7 = c/7
21 = c
4 0
2 years ago
Read 2 more answers
Judy is selling small candles at the fair for $4 each and large candles for $6 each. She collected $144 selling a total of 28 ca
Pepsi [2]

Answer:

Number of small candles = 12

Number of large candles = 16

Step-by-step explanation:

Total candles = 28

x + y = 28 ---------------(I)

Cost of 'x' small candles = 4 *x = 4x

Cost of 'y' large candles = 6 *y = 6y

Total amount = $144

4x + 6y = 144 -------------(II)

Multiply equation (I) by (-4) and then add the equation. So, x will be eliminated and we can find the value of 'y'

(I) * (-4)            -4x - 4y = -112

(II)                  <u>  4x  + 6y = 144</u>              {Now, add}

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                                y = 32/2

y = 16

Plug in y = 16 in equation (I)

x + 16 = 28

       x = 28 - 16

x = 12

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2 years ago
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Alexxandr [17]

83.60 - 15.35 - 4.75
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3 years ago
There are 16 tablespoons in 1 cup. How many tablespoons of cornstarch would Rhoda need to make 23 batches of green slime​?
pashok25 [27]

Answer:

92 tablespoons

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3 years ago
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