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RSB [31]
3 years ago
10

Is the equation -x=1-y and 2+y=x+1 coincident, intersecting, or parallel

Mathematics
1 answer:
yarga [219]3 years ago
4 0
\bf x=1-y\implies x+y=1\implies y=-x+1\\\\
-------------------------------\\\\
2+y=x+1\implies y=x+1-2\implies y=x-1

notice the equations in slope-intercept form, the first one has a slope of -1, the second one has a slope of 1.

if the slopes are equal, and the constant is different, they lines are parallel.

if the slopes are equal, and the constant is the same the equations are exactly the same thing, and the lines are coincident, on slapped on top of the other.

if the slopes differ, like here, then they have a solution, where they intersect.
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Work out the area of this quarter circle of radius 8cm, Give you answer in terms of pi
oee [108]

Answer:

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Step-by-step explanation:

we know that

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A=\frac{1}{4}\pi r^{2}

we have

r=8\ cm

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3 0
3 years ago
Use Pythagorean Theorem to solve for the
babymother [125]
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a as 4
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6 0
3 years ago
Using place value how to increase 2384598 by six million
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hope this helps
3 0
3 years ago
I need help with this problem quick.
KatRina [158]

The absolute value - or distance from zero, is fairly simple to find. Make your final answer positive to find it.


|\frac{10-7}{4}| = |\frac{3}{4}| = |.75| = .75

|\frac{-15+8}{6}| = |-\frac{7}{6}| = |-1.2| = 1.2

8 0
3 years ago
Perpendicular lines do not intersect. True or false?
saul85 [17]

Answer:

Perpendicular lines are lines that intersect at a right (90 degrees) angle

Step-by-step explanation:

4 0
3 years ago
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