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Alexxandr [17]
3 years ago
11

How many times do the graphs ofthe equations y = 2x + 4 andy = -x + 4 intersect?​

Mathematics
1 answer:
amid [387]3 years ago
5 0

Answer:

The graphs intersect one time

Step-by-step explanation:

we have

y=2x+4 ----> equation A

y=-x+4 ----> equation B

we know that

The solution of the system of equations is the intersection point both graphs

using a graphing tool

The graphs intersect only at one point

so

The system has only one solution

The intersection point is (0,4)

therefore

The solution is x=0, y=4

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Two numbers are in the ratio 2:3 and their sum id 45 then find both number​
Goryan [66]

Answer:

Step-by-step explanation:

Let the two numbers be 2x and 3x.

According to the question,

2x+3x=45

5x=45

x=45/5

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3x=3*9=27

8 0
3 years ago
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QveST [7]

Answer:

y = (1/2)x - 3     Answer A is closest.  

Step-by-step explanation:

Two points on the line are (0, -3) and (4, -1).  Notice that I've intentionally chosen "nice" points whose coordinates are integers; this makes the math easier.  The point (1, -5/2) is also on the line if you want to use it, but the math's a bit more complicated.

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The slope-intercept formula for the equation of a straight line is the most convenient to use here, since we can tell immediately from the graph that the y-intercept is (0, -3):

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Answer A should be y = (1/2)x - 3 for improved legibility.  1 2 x is not correct as a way to express (1/2)x.

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3 years ago
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ANSWER:
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EXPLNATION:
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Answer:

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Step-by-step explanation:

i think

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Step-by-step explanation:

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