2 years ago

Solve the system of equations 4x equations. 8y = -8 and 5x-9y = -7 by combining the

Mathematics

1 answer:

statuscvo [17]2 years ago

4 0

Answer:

x=−16/5

and y=−1

Step-by-step explanation:

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If 3x + 2y = 8 and x is twice the value of y, what is the value of x<br> -y?

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Answer:

Step-by-step explanation:

3x+2y=8

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6y+2y=8

8y=8

y=1

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3 years ago

What is the slope of (-1,6) and (2,3)?

LenKa [72]

Answer:

-1

Step-by-step explanation:

For a line joining two points (x1, y1) and (x2, y2), it's slope is given as:

$\boxed{ \mathsf{slope = \frac{ y_{2} -y _{1}}{ x_{2} - x _{1}} }}$

Here, the two points are (-1, 6) and (2, 3) in place of (x1, y1) and (x2, y2).

Solving for slope:

$\implies \mathsf{ \frac{3 - 6}{2 - ( -1 )} }$

$\implies \mathsf{ \frac{ - 3}{2 + 1 } }$

$\implies \mathsf{ \frac{ - 3}{3 } }$

$\implies \mathsf{ - 1 }$

Hence, the slope of the line joining the given points is <u>-1.</u>

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Therefore the answer is D. (x + 1)(x2 + 2)

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