When a line is perpendicular to another line, the slope is the negative reciprocal of the other line's slope. So in this case, the slope would be 1, since the negative reciprocal of -1 is 1/1 which is 1.

To find the y-intercept, you have to substitute the point (8,2) into y = mx + b

2 = 1(8) + b

b = -6

The equation is y = x - 6

8 0

3 years ago

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For what value of the variable the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)?

iragen [17]

For x=2, the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)

Step-by-step explanation:

We have to convert the given statement in mathematical or algebraic form to get the value of x for which the given condition is true.

So,

The problem can be written as:

$4(5x-8) = 2(4-x)+4$

Applying distributive property

$20x-32 = 8-2x+4\\20x-32 = 12-2x\\$

Adding 32 on both sides

$20x-32+32 = 12-2x+32\\20x = 44-2x$

Adding 2x on both sides

$20x+2x = 44-2x+2x\\22x=44$

Dividing both sides by 22

$\frac{22x}{22} = \frac{44}{22}\\x = 2$

Hence,

For x=2, the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)

Keywords: Linear equation, variables

Learn more about linear equation at:

#LearnwithBrainly

3 0

3 years ago

10 POINTS AND IM WILLING TO GIVE BRAINLIEST FOR THE CORRECT ANSWER

jeyben [28]

Just multiply the 14 by 2.2 and you get 30.8lb :)

5 0

4 years ago

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