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3 years ago

HELPP ME PLZZZ THIS IS MY LAST QUESTION

Mathematics

2 answers:

cestrela7 [59]3 years ago

8 0

Answer:

a. y = 3x - 11

b. y = -1/3 x - 1

Step-by-step explanation:

The line on the graph increases by 3 every time it moves over 1. This means that the slope of the given line is 3.

a. When 2 equations are parallel, their slopes are the same, so the slope of this equation will be 3. To find the y-intercept, plug in the values of the slope and the given point (3, -2) into the equation y = mx + b:

-2 = 3(3) + b

-2 = 9 + b

-11 = b

The y-intercept is -11. Now we can write our equation:

y = 3x - 11

b. When 2 lines are perpendicular, their slopes are negative reciprocals. The negative reciprocal of 3 is -1/3. We can use the slope and the given point (3, -2) to find the y-intercept:

-2 = -1/3(3) + b

-2 = -1 + b

-1 = b

The y-intercept is -1. Now we can write our equation:

y = -1/3x - 1

Hope this helps :)

kogti [31]3 years ago

8 0

I’m doing this so that you can give the other person brainliest because they sound like they know what they are talking about lol

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