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butalik [34]
2 years ago
13

If y = 4x - 2, find y if x = -1.

Mathematics
2 answers:
NARA [144]2 years ago
7 0
4(-1)-2 = -4-2 = -6 i hope this help
mezya [45]2 years ago
7 0
Just substitute the value given for x in the function

y  = (-1) * 4 - 2 = -4 - 2= -6 
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Points Pand Q lie in plane A. How many lines contain P
jeka94

Answer:

The correct answer is :

1. Line PQ (One line PQ).

Step-by-step explanation:

The first step to solve this question is to draw the plane A with the points P and Q lying on it.

We know that given two different points there is only one line that contains this two different points.

Let's analyze each option.

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This option is wrong because there aren't two different lines. In fact it is only one line that can be named line PQ or line QP.

''3. The 2 lines PQ and QP plus another line that does not lie in plane A.''

This option is assuming that exist three lines that contain P and Q. This option is also wrong.

''1. Line PQ''

This option is correct. It will be clarify with the drawing I will attach.

''We can't name them all!''

This option is assuming that exist infinite lines that contain P and Q. This option is wrong.

In the drawing I call the line that contains P and Q as line L.

Given that P and Q lie in plane A necessarily the line L must lie on the plane A.

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Step-by-step explanation:

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