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3 years ago

How do you know if two lines are parallel without a equation?

1 answer:

7 0

If they do not have solutions (intersections).
If they do not have intersections then they must be parallel. Imagine it on the graph

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Graph the exponential model !!! Help needed !!!

BigorU [14]

Answer:

i think its the 2

Step-by-step explanation:

for sure❤

3 0

3 years ago

Read 2 more answers

The points (-18,15) and (-20,15) lie on a circle with a radius of 1. Find the coordinates of the center of the circle.

FromTheMoon [43]

.hello :
an equation of the circle Center at the w(a,b) and ridus : r is :
(x-a)² +(y-b)² = r²
in this exercice : r = 1
The points (-18,15) and (-20,15) lie on a circle with a radius of 1:
(-18-a)²+(15-b)² = 1 ....(1)
(-20-a)² +(15-b)² = 1 ....(2)
solve this system :
(1) -(2) : (-18-a)² - (-20-a)² =0
(-18-a)² =(-20-a)² =0
( -18-a = -20-a) or (-18-a = - (-20-a))
1 ) ( -18-a = -20-a) no solution confused : -18=-20
2 ) -18-a =20+a
-2a =38
a = -19
subst in (1) :(-18+19)²+(15-b)² =1
(15-b)² = 0.... 15-b = 0 .... b = 15
the center is :w(-19,15)

6 0

3 years ago

Determine the end behavior of the function: f(x)= -3x*4

g100num [7]

F(x)=-3x*4 = 6x^2 +C

8 0

3 years ago

-x + 2y = 3 2x – 3y = -6

s2008m [1.1K]

Answer:

x = -3

y = 0

Step-by-step explanation:

Given equations :- 

-x + 2y = 3 ....... ( i )

2x - 3y = -6 ....... ( ii )

From ( i ) 

-x + 2y = 3

-x = 3 - 2y

x = 2y - 3 ........ ( iii )

From ( ii ) 

2x - 3y = -6

2x = -6 + 3y

$x = \frac{ - 6 + 3y}{2}$

........ ( iv )

Equating ( iii ) and ( iv )

x = x

$2y - 3 = \frac{ - 6 + 3y}{2}$

4y - 6 = -6 + 3y

4y - 3y = -6 + 6

y = 0

Putting value of y in ( iii )

x = 2y - 3

x = 2 ( 0 ) - 3

x = -3

4 0

3 years ago

Write absolute value of the following rational number -6/11 , 15/21 , -9 , -21/-37 , 31/-54

Dahasolnce [82]

Answer:

6/11, 15/21, 9, 27/37, 31/54

Step-by-step explanation:

Absolute value is when you determine the distance between a value and zero . Since you will always have a positive distance, your absolute values are positive as well.

4 0

4 years ago