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3 years ago

Which linear equation represents a line with a slope of -7 and a y-intercept of 12

Mathematics

1 answer:

notka56 [123]3 years ago

4 0

Answer:

Answer → y = -7x + 12

Step-by-step explanation:

General equation of a line:

$\hookrightarrow \: { \tt{y = mx + c}} \\$

m is the slope
c is the y intercept

From the question;

m is -7

c is 12

${ \tt{y = - 7x + 12}}$

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You want to go to the skate park, and you have two options:

Tcecarenko [31]

Answer:

See Explanation

Step-by-step explanation:

Define the variables

Let the entry fee be c and the hourly rate be m

Let the number of hours be x and the total amount be y

Work to solve

For Sami's skate

$c = 6$ and $m = 2$

For Brad's skate

$c =10$ and $m = 1$

The equations

The equation is derived using: $y = mx + c$

For Sami's skate

$y = 2x + 6$

For Brad's skate

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When the cost are the same

To do this, we equate both expressions

i.e.

$y = y$

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i.e. the cost are the same at the 4th hour

What is the cost

Substitute 4 for x in any of the equations

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$y = 4 + 10$

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2 years ago

What is sixty-five hundred in standard form

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3 years ago

Read 2 more answers

What is the conjugate of the product (2 - i)(1+2i)?

ivann1987 [24]

Answer:

4-3i is the answer.......

Explanation

Product

(2-i)(1+2i) = 2+4i-i-2i²

= 2+4i-i+2

= 4+3i

conjugate of 4+3i is 4-3i

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3 years ago