What is the slope of the line through (1,-1) and (5,-7)

Mathematics

1 answer:

tiny-mole [99]3 years ago

8 0

Answer:

-3/2

Step-by-step explanation:

The slope is the ratio of rise to run, the change in y divided by the change in x. It is often designated by the letter "m".

m = (change in y)/(change in x) = (-7 -(-1))/(5 -1) = -6/4

m = -3/2

The slope of the line through the given points is -3/2.

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a system of two linear equations has infinitely many solutions. one of the equations in the system is y-3x=-3.write an equation

Troyanec [42]

The other equation could be

2y - 6x = -6

Solving:-

y - 3x = -3..........(1)
2y - 6x = -6........(2)
multiplyng the first equation by 2 gives
2y - 6x = -6

so equations (1) and (2) are the same equation
If we graph them they will be the same line
Every point on that line will be a solution.

So there are infinitely many solutions

8 0

3 years ago

Examine these points on line u and line v. Line u: (9, –8), (5, 4) Line v: (4, 2), (7, –7) How many points of intersection are t

musickatia [10]

Answer:

The line u and line v have no point of intersection because they are parallel lines

Step-by-step explanation:

The slope of a straight line is given as follows;

$Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}$