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Kay [80]
2 years ago
13

What is an equation of the line that passes through the point (-1, -3) and is perpendicular to the line y=1/2x-7 ?

Mathematics
1 answer:
trasher [3.6K]2 years ago
3 0

Answer:

y = -2x - 5

Step-by-step explanation:

Set the slope of the given equation to the reciprocal  to get a perpendicular slope:

y = 1/2x --> -2x

y = -2x + b will be your current equation. To get b, you must insert the given information: (-1, -3)

-3 = -2 (-1) + b

Solve:

-3 = 2 + b

<u>-2   -2      </u>

-5 = b

Thus your equation would be y = -2x - 5.

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The cone and the cylinder below have equal surface area. true or false
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Step-by-step explanation:

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3 years ago
1/4 of a carton of 12 eggs to make an omelet how many did she use ?
Svetach [21]
3 eggs is 1/4 of 12 hope this helps :)
7 0
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Read 2 more answers
Given the linear equation, 2x +4= 6, find the rate, initial value, and specific value.
kap26 [50]

Answer: B. The rate is 2, the initial value is 4, and the specific value is 6.

Step-by-step explanation:

for a linear function y = a*x + b

Rate = coefficient that is multiplicating the variable. ( a in this case)

Initial value = value taken of y, when we have x = 0 (b in this case)

Specific value = value forced on y.

In this case, we have:

y = 6 = 2*x + 4

Then:

The coefficient multiplicating x is 2, so the rate is 2.

The constant term is 4, so the initial value is 4.

The value equal to y is 6, so the specific value is 6.

The correct option is B.

4 0
3 years ago
Which Password is "safer?" A password made up of a five letter word, or a password made up of a seven digit number? Why??
egoroff_w [7]

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A seven digit number

Step-by-step explanation:

A password made up of digits is less likely to relate to your life (harder to guess) than a five letter word.

4 0
3 years ago
At CD Shack, all used CDs are the same price. Jesse spent $54 and Mimi spent $66 on used CDs. What is the most each used CD coul
Alinara [238K]
Hey there
__________
The correct answer is
Whatever each CD costs, what each person paid is that cost times the number of CDs purchased (no sales tax for this problem).
So, the price of one CD is a factor of $66 (a number of $ that divides $66 evenly).
In theory, it could be $1, $2, $3, $6, $11, $22, $66.
It could even be $0.50, $0.25, $0.20, $0.10, $0.05,...
Also, the price of one CD must be a factor of $54. such as $54,$27,$18,$9,$6,$3,$2,$1,... .
You are looking for the most that price could be.


The grew greatest price that is in both lists is $6.

How can you make those lists?
You can start with the total price, then the price divided by 2, by 3, by whatever whole number you can divide it.

Otherwise, you could find the greatest common factor of 66 and 54
from the prime factorization of both numbers.
___________________
Hope this helps you
5 0
3 years ago
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