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Ludmilka [50]
3 years ago
6

Line KL has an equation of a line y = 4x + 5. Which of the following could be an equation for a line that is perpendicular to li

ne AB? (6 points)
y = 4x − 8

y = 1 over 4x − 8

y = −4x − 8

y = −1 over 4x − 8
Mathematics
2 answers:
daser333 [38]3 years ago
6 0
Y = -1 over 4x - 8 is the answer I think
djyliett [7]3 years ago
3 0
To find a perpendicular slope (or line), the slope (in this case 4x) must be the opposite sign and its reciprocal, which is basically the fraction flipped upside down. Since 4 is technically 4/1, that fraction flipped is 1/4. And since you need to flip the sign too, instead of it being a positive number, it's negative. Your answer is -1/4x-8
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I need help please!:D
givi [52]

Answer:

a 80

Step-by-step explanation:

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5 0
2 years ago
I NEED FAST HELP!!!!!!!!!!!!!!!!!!!
Sindrei [870]

Answer:

The student is expected to spend <em>15.4 hours </em>doing homework

Step-by-step explanation:

The scattered plot shows there is a close correlation between the variables. A line of best fit will go through the 'center' of the points. Since we are not required to find an exact line, we'll draw it in red color as shown below

To know the equation of that line, we must take two clear points of it from the graph. We'll pick (28,4) and (4,25)

The equation of a line, given two points (a,b) and (c,d) is

\displaystyle y-b=\frac{d-b}{c-a}(x-a)

Using the selected points

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Simplifying and computing results, the equation is

\displaystyle y=-\frac{7}{8}x+\frac{57}{2}

Using that equation, we can predict how many hours the students will spend doing homework if they spend 15 hours watching TV

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So the student is expected to spend 15.4 hours doing homework

7 0
3 years ago
#14 i
ivann1987 [24]

Answer:

Incorrect/No

Step-by-step explanation:

7x2=14

-7x2=-14

<u>Follow the below guidelines:</u>

  • A positive number times a positive number is a positive number
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  • A positive number times a negative number is a negative number
  • A negative number times a negative number is a positive number

Looking at the last one, we see that -2x-7=14, a positive number

Hope this helps!

--Applepi101

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