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Taya2010 [7]
4 years ago
13

A line through (4,-2) with slope -3

Mathematics
1 answer:
GalinKa [24]4 years ago
4 0

Answer: y = -3x + 10

Step-by-step explanation:

Using the formula for finding the equation of line ;

y - y_{1} = m ( x - x_{1} )

x_{1} = 4

y_{1}  = -2

m = -3

Substituting into the formula , we have

y - (-2) = - 3 ( x - 4 )

y + 2 = -3x + 12

writing the equation of the line in slope - intercept form , this means that we must make y the subject of the formula , that is

y = -3x + 12 - 2

y = -3x + 10

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Solve the following equation.<br> - 8x=-6x +10
Step2247 [10]

Answer:

x=-5

Step-by-step explanation:

-8x=-6x+10

-8x+6x=10

-2x=10

x=-5

3 0
4 years ago
Read 2 more answers
21 = -2p - 5 what number does p represent?
svetoff [14.1K]

Answer: P represents -13

Step-by-step explanation:

Since a negative x negative + positive, we know that p has to be a negative.

For me, I added both 21 and -5 (though I made it into a positive), and got 26.

What number times -2 is positive 26?

So, you divide 26/-2, which then becomes -13.

Thus, p=-13 :)

4 0
4 years ago
If two opposite sides of a square are increased by 5 meters and the other sides are decreased by 2 meters, the area of the recta
stira [4]
Let the original length of the square be x cm.
(x+5) X (x-2) = 60
Or, x^2-2x+5x-10-60 = 0
Or, x^2+3x-70=0
Or, x^2+10x-7x-70=0
Or, x(x+10)-7(x+10)=0
Or, (x-7)(x+10)=0
Therefore, x=7 or x=-10 (rejected as the length cannot be negative)
Ans: Area of the square=l^2=7^2=49 square meters.
4 0
3 years ago
(6u^2+5u^2v^2−3uv^2)−(4u^4+5u^2^v^2−5uv)
Aleksandr [31]

Answer:

-4u^{4}+6u^{2}-5uv-3uv^{2}

Step-by-step explanation:

When subtracting polynomials, first start with distributing the negative sign to the second polynomial:

6u^{2} + 5u^{2} v^{2}-3uv^{2}-4u^{4}-5u^{2}v^{2}+5uv

Simplify by combining like terms:

-4u^{4}+6u^{2}-5uv-3uv^{2}

4 0
3 years ago
Read 2 more answers
What is the value of n? 9×27+2×31-28=
zepelin [54]
If you use PEMDAS: Parentheses, Exponents, Multiply, Divide, Add, Subtract for order of operations your answer will be 277
9x27+2x31-28
243+62-28
305-28=277
6 0
3 years ago
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