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3 years ago

PLEASE PLEASE PLEEEASE HURRY! ILL GIVE 20 POINTS!!! WILL GIVE BRAINLIEST!

Mathematics

2 answers:

Whitepunk [10]3 years ago

6 0

Answer:

y = 3x + 3

Step-by-step explanation:

y = mx + b

m = slope

m = y2-y1/x2-x1 = 9-6/2-1 = 3/1 = 3

m = 3

b = y-intercept

b = 3

disa [49]3 years ago

5 0

Answer:

The answer would be y = 3x + 3.

Step-by-step explanation:

You might be interested in

Find the distance between the lines with equations -4x+7y+9=0 and y=4/7x-9

uysha [10]

Answer:

54/sqrt(65)

Step-by-step explanation:

You can only find the distance between two lines that are parallel. If they are not parallel they are different lengths everywhere. So first lets check they are parallel. i am going to write them in slope intercept form, which is y = mx + b

-4x+7y+9=0

-4x + 9 = -7y

y = 4/7 x - 9/7

y = 4/7x - 9

the slopes (m) are the same so theya re parallel.

Now, to find the distance we want a line that is perpendicular to the two, find where that line intersects both lines, then find the distance between those two points. Easy right?

First a line that is perpendicular. Super easy, a perpendicular line as a slope of -1/m. for these two functons m = 4/7 so slope for this perpendicular equation is -7/4.

so the most simple function is y = -7/4 x so let's use that.

Now when does y = -7/4 x intersect y = 4/7 x - 9/7 and y = 4/7x - 9? just set them equal to each other.

-7/4 x = 4/7 x - 9/7

-7/4 x - 4/7 x = -9/7

(-49 - 16)/28 x = -9/7

-65/28 x = -9/7

x = 252/455

x = 36/65

Just double check, plug this into both equations and you should get the same answer.

-7/4 x

-7/4 (36/65)

-63/65

4/7 x - 9/7

4/7 (36/65) - 9/7

-63/65

So the point is (36/65, -63/65) Fun. Next

-7/4 x = 4/7x - 9 Just gonna do this in one step.

x = 252/65

so now -7/4 252/65 = 4/7 252/65 - 9 = -441/65 So the point is (252/65, -441/65)

Now, we want the distance between (36/65, -63/65) and (252/65, -441/65)

sqrt((252/65 - 36/65)^2 + (-441/65 - -63/65)^2) = 54/sqrt(65)

So that's the distance between the two lines.

6 0

3 years ago

A theater is selling movie tickets. The first night, 19 Senior tickets and 57 Adult tickets were sold. The second night, 20 Seni

Butoxors [25]

Answer:

The theater sold a higher ratio of Senior tickets to Adult tickets on the first night.

Step-by-step explanation:

Rate of senior tickets to adult tickets:

Can also be interpreted as the percentage of senior tickets, out of the number of total tickets, which is the number of senior tickets multiplied by 100% and divided by the number of total tickets.

The first night, 19 Senior tickets and 57 Adult tickets were sold.

19 out of 19 + 57 = 76. So

19*100%/76 = 25%

The second night, 20 Senior tickets and 62 Adult tickets were sold.

20 out of 20 + 62 = 82. So

20*100%/82 = 24.39%

25% > 24.39%, so the theater sold a higher ratio of Senior tickets to Adult tickets on the first night.

4 0

3 years ago

5. An attacker swings a board with a mass of 2 kg toward a victim. The acceleration is 10 m/s2 when the board hits the victim. H

suter [353]

The force exerted on victim is 20 newton