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Lelechka [254]
3 years ago
12

2x-4y=6 and 3x+y=-5 what is the point of intersection

Mathematics
2 answers:
VMariaS [17]3 years ago
5 0

Answer:(-1,-2)

Step-by-step explanation:

Mamont248 [21]3 years ago
3 0

Answer:

  (x, y) = (-1, -2)

Step-by-step explanation:

I like a graphing calculator for solving systems of equations. It shows the point of intersection is (-1, -2).

__

You can add 4 times the second equation to the first:

  (2x -4y) +4(3x +y) = (6) +4(-5)

  14x = -14 . . . . simplify

  x = -1 . . . . . . . divide by 14

Now, you can put this value in the second equation to get ...

  3(-1) +y = -5

  y = -2 . . . . . . . add 3

The point of intersection is (x, y) = (-1, -2).

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Slope 8 ​; through ​(4​,3​)
Reptile [31]

Answer:

y=8x-29

Step-by-step explanation:

Since we know the slope (m) is 8, we can plug it in the slope-intercept formula y=mx+b, making y=8x+b.

Now we need to find the y-intercept (b). To do that, you would need to plug in the points given to you, which were (4,3).

x=4, y=3... so 3=8(4)+b

Now you can solve for the variable b to find the y-intercept.

3=8(4)+b, multiply...

3=32+b, subtract 32 on both sides...

-29=b

Therefore, the y-intercept, or b, is -29.

The equation would be y=8x-29

7 0
3 years ago
NEED HELP ASAP!!! Please help and I will mark as brainliest!
alex41 [277]
Mnp.............
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3 0
3 years ago
This is a linear equations question so pls help me I’m dying of stress thank you! ^^
topjm [15]

Answer:

the answer to this problem is D:(-2,4)(1,1)

7 0
2 years ago
Read 2 more answers
The table shows y as a function of x. Suppose a point is added to this table. Which choice gives a point that preserves the func
ohaa [14]
The a Eder is b 2,-1
6 0
3 years ago
Equation parallel to y = 3x + 2 and passing through (1, 1)
Kisachek [45]

Answer:

y = 3x - 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 3x + 2 ← is in slope- intercept form

with slope m = 3

Parallel lines have equal slopes, then

y = 3x + c ← is the partial equation

To find c substitute (1, 1) into the partial equation

1 = 3 + c ⇒ c = 1 - 3 = - 2

y = 3x - 2 ← equation of line

6 0
3 years ago
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