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3 years ago

PLEASE HELP ME i beg you

Mathematics

2 answers:

kotykmax [81]3 years ago

5 0

Solution to this question
qn. 1 : the number of planes is five (5)planes
qn. 2 : points A, H, B are collinear
qn. 3 EF is the line segment

labwork [276]3 years ago

3 0

1) How many planes are shown in the figure?

answer: 5

2) Which of the following points are collinear?

answer: A,H,B

3) which of the following is a segment line?

answer: EF

4) Name the intersection of the planes ACE and CDFE

answer: CE

5) Name the two planes that intersect at BD.

Answer: FBD and ABCD

6) plane A, B,J,E are coplanar

Answer: false.

Which of the following is the correct way to name this line?
⇔
Answer: BC

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2 years ago

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8 0

3 years ago

Y=4x-6 and passes through point 8,12

umka2103 [35]

Answer:

Slope of required line if both lines are parallel: y=4x-20

Slope of required line if both lines are perpendicular: y=-1/4x+14

Step-by-step explanation:

We need to find equation of line while we are given another line having equation y=4x-6 and passes through point (8,12)

Note: Since it is not given if the required line is parallel or perpendicular to the given line. I will solve for both cases.

If Both lines are parallel the equation of new line will be:

We need to find slope and y-intercept to write equation of new line.

When lines are parallel there slopes are same

So, slope of given line y=4x-6 is 4 (Compare with general equation y=mx+b, m is slope so m=4)

Slope of new line is: m=4

Now finding y-intercept

Using slope m=4 and point (8,12) we can find y-intercept

$y=mx+b\\12=4(8)+b\\12=32+b\\b=12-32\\b=-20$

y-intercept of new line is: b=-20

Equation of required line having slope m=4 and y-intercept b=-20 is

$y=mx+b\\y=4x-20$

If Both lines are perpendicular the equation of new line will be:

We need to find slope and y-intercept to write equation of new line.

When lines are perpendicular there slopes are opposite of each other

So, slope of given line y=4x-6 is 4 (Compare with general equation y=mx+b, m is slope so m=4)

Slope of new line is: m=-1/4

Now finding y-intercept

Using slope m=-1/4 and point (8,12) we can find y-intercept

$y=mx+b\\12=-\frac{1}{4} (8)+b\\12=-2+b\\b=12+2\\b=14$

y-intercept of new line is: b=14

Equation of required line having slope m=-1/4 and y-intercept b=14 is

$y=mx+b\\y=-\frac{1}{4} x+14$

8 0

3 years ago