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musickatia [10]
3 years ago
10

1.The equation of line CD is (y−3) = − 2 (x − 4). What is the slope of a line perpendicular to line CD? 2.The equation of line A

B is y = 2x + 4. Write an equation of a line parallel to line AB in slope-intercept form that contains point (3, −2). 3.The equation of line QR is y = negative 1/2x + 1. Write an equation of a line perpendicular to line QR in slope-intercept form that contains point (5, 6). 4.Line WX contains (−1, 2) and (4, 12) Line YZ contains points (5, 8) and (−2, −6). Lines WX and YZ are 5.Line CD contains points A (4, −7) and B (4, 8). The slope of line CD
Mathematics
2 answers:
Helga [31]3 years ago
8 0

Answer:

m= y2-y1 ÷ X2 - X1

Step-by-step explanation:

gogolik [260]3 years ago
5 0
So here's how to do it,
slope intercept form is y=mx+b
m is the slope, b is the y- intercept, X is your unknown variable.

you need to solve to get y by its self to get your slope.

for perpendicular lines flip the slope

ex 1, smy=2x+6 --- slope of a perpendicular line will be 1/2

ex 2, y=3/2+8 ---8 perpendicular lien would have a slope of 2/3

parallel lines have the same slope so any equation with with the same slope will be parallel if it has the same degree.

ex. y=2x+14 is parallel to y= 2x+56

slope can be found using the following formula if you have two sets of points on the same line

m= y2-y1 ÷ X2 - X1
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The county fair charges $1.25 per ticket for the rides. Jermaine bought 25 tickets for the rides and spent a total of $43.75 at
satela [25.4K]
The total cost is the dependant variable and the number of tickets along with flat out price is the independent variable.

The equation would be y = 1.25x + ?

You would insert 25 for x which equals 31.25 and insert 43.75 for y.

43.75 = 31.25 + ? Then subtract 31.25 from both sides of the equation and you would get....

12.5 = ?

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7 0
3 years ago
A car is traveling at a steady speed. It travels 1 and one half
OLga [1]

Step-by-step explanation:

1.5 mi = 2 and 1/4 min

In 43 minutes:

43 ÷ 2.15 = 20             2.15 = 2 and 1/4 min

Now you have to multiply 1.5 by 20

1.5 x 20 = 30

In 1 hour (60 minutes):

60 ÷ 2.15 = 27.9

Now you have to multiply 1.5 by 27.9

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Hope this was helpful :)

6 0
3 years ago
What is 18 rounded to the nearst 1/4
Elina [12.6K]

Answer:

18

Step-by-step explanation:

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8 0
3 years ago
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Is (x +1) a factor of <br> f(x) = x3 + 2x2 −5x − 6 ?<br><br> Yes <br> No
sertanlavr [38]

Answer:

Yes.

Step-by-step explanation:

You can find it out by factoring but ill do it easier way.

(x + 1 ) = 0 put the first and second equation to 0

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x³ + 2x² - 5x - 6 = 0  Now plug in the x in the equation

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0 = 0

so (x + 1) is a factor.

5 0
3 years ago
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