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Vera_Pavlovna [14]
3 years ago
12

For the graph x = 12 find the slope of a line that is perpendicular to it and the slope of a line parallel to it.

Mathematics
1 answer:
il63 [147K]3 years ago
3 0
The slope of a line perpendicular to this is (y=a number) 0. That's because the change in the x would be 0, because it would be y=3 or something like that. 

The slope of a line parallel to this is undefined. That's because it has the same slope as this line, and this line has a slope of undefined. 
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Solve the equation<br>-2x + 1 = -4x + 9<br>x=​
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Step-by-step explanation:

Step 1: Write equation

-2x + 1 = -4x + 9

Step 2: Solve for <em>x</em>

  1. Add 4x to both sides: 2x + 1 = 9
  2. Subtract 1 on both sides: 2x = 8
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Step 3: Check

<em>Plug in x to verify it's a solution.</em>

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8 0
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Is the ordered pair a solution of y ≥ 2x − 5? a. (3, 1) b. (1, −4)
Deffense [45]

Answer:

a. Yes

b. No

Step-by-step explanation:

To find if an ordered pair is a solution to the inequality, substitute its x and y values for the x and y in the inequality and solve. If the equation is true, then it is a solution. If it is not, then it is not a solution.

1) First, substitute the x and y values of (3, 1) into the inequality. So, substitute 3 for x and 1 for y:

1 \geq 2(3)-5\\1\geq 6-5\\1\geq 1

1 is greater than or equal to 1, so (3,1) is a solution.

2) Second, do the same with the point (1, -4). Substitute 1 for x and -4 for y:

-4\geq 2(1)-5\\\\-4\geq 2-5\\-4\geq -3

However, -4 is not greater than or equal to -3, thus (1, -4) is not a solution.

4 0
3 years ago
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