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3 years ago

What is the slope intercept form of the equation: 4x - 8y = 72

Mathematics

2 answers:

Alborosie3 years ago

8 0

Answer: 1 Factor out the common term 44.

4(x-2y)=724(x−2y)=72

2 Divide both sides by 44.

x-2y=\frac{72}{4}x−2y=

72

3 Simplify \frac{72}{4}

72

 to 1818.

x-2y=18x−2y=18

4 Add 2y2y to both sides.

x=18+2yx=18+2y

Step-by-step explanation:

Arlecino [84]3 years ago

6 0

Answer:

Step-by-step explanation:

if you put it in y=mx+b form you would get y=4x-8=72

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On a coordinate plane, 2 lines are shown. Line P Q has points (negative 8, 2) and (4, 2). Line M N has points (8, 6) and (8, neg

DaniilM [7]

Answer:

Slope of PQ = 0

Slope of MN = infinity

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Step-by-step explanation:

for any two points (x1, y1), (x2, y2)given in coordinate plane slope is given by

$y1 - y2/x1-x2\\\\For \ line \ PQ\\slope = 2 - 2/-8-4 = 0\\\\For \ line \ MN \\slope = 6 - (-8)/8-8 = 1/0 = infinity\\\\$

For any line if slope is zero it is parallel to X axis and perpendicular to Y axis

For any line if slope is infinity it is parallel to Y axis and perpendicular to X axis

Also we know X and Y are perpendicular to each other.

Since slope of PQ is zero it is parallel to X axis and perpendicular to Y axis

Since slope of MN is infinity it is parallel to Y axis and perpendicular to X axis.

Thus two lines PQ and MN are perpendicular to each other.

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