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Mazyrski [523]
3 years ago
8

Please help me with this

Mathematics
1 answer:
Alex787 [66]3 years ago
6 0
Im srry i cant help with that because K12 will not let me look up answers i bet
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I need help with math algebra homework
lesya [120]

Answer:

1. Slope: -3/4

2. Point-slope: y+4=-3/4(x+4)

3. Slope-intercept: y=-3/4x-7

4. Standard form: 3x+4y=-28

Step-by-step explanation:

1. To find the slope, use the slope formula, which is: y2-y1/x2-x1.

Plug the y-coordinates into the top part of the equation and the x-coordinates into the bottom part.

2--4/-4-4

2+4/-8 = 6/-8, or 3/-4

2. Use the slope and one of the x and  y coordinates to put the equation into point-slope form. Recall that point-slope form is: y-y1=m(x-x1). Let's use the coordinates (4,-4).

y+4=-3/4(x+4)

3. To put the point-slope equation into slope-intercept form (y=mx+b), you need to distribute -3/4 to x+4 and subtract 4 from both sides.

When you distribute, the equation becomes:

y+4=-3/4x-3

Finally, when you subtract 4, the equation becomes:

y=-3/4x-7

4. Standard form is written as x+y= #.

To convert y=mx+b to standard form, first subtract -3/4x from both sides.

-3/4x + y = -7

Multiply everything by 4

3x + 4y = -28

3 0
3 years ago
A photograph has a width of 8 cm and a length of 3x cm.
enyata [817]
W*l=A

w=8
l=3x
8*3x= A

That would be the equation 
3 0
3 years ago
Find the GCF of the terms of the polynomial. 18x4 – 27x3 – 36x2
d1i1m1o1n [39]

Answer:

9 x^ 2

Step-by-step explanation:

18x4 – 27x3 – 36x2

<u>GCF :</u>

<em>Find the prime factors of each term in order to find the greatest common factor (GCF)</em>

= 9 x^ 2

3 0
3 years ago
Rearrange the formula to make x the subject.<br><br> y = 4x + 3
allochka39001 [22]

Answer:

x=\frac{y-3}{4}

Step-by-step explanation:

y=4x+3

y-3=4x

\frac{y-3}{4}=x

x=\frac{y-3}{4}

4 0
3 years ago
Read 2 more answers
Find the area of the figure.
seraphim [82]

\huge \bf༆ Answer ༄

At first Divide the figure into two rectangles, I and Il

Area of figure l is ~

  • \sf24 \times (40 - 30)

  • \sf24 \times 10

  • \sf240 \:  \: ft {}^{2}

Area of figure ll is ~

  • \sf 18 \times 30

  • \sf540 \: ft{}^{2}

Area of whole figure = Area ( l + ll )

that is equal to ~

  • \sf240 + 540

  • \sf780 \:  \: ft{}^{2}

7 0
2 years ago
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