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3 years ago

14

Explain how you know a system of equations has

1 answer:

shusha [124]3 years ago

4 0

When they have no solutions, the lines are parlaell, or they have the same slope but different y intercept
example

3x+2y=2 and
3x+2y=4 are paralell
also
y=3x+2 and
y=3x+4 are also parlell, no solutions

infinite solutions are when they are the same line
they have the same slope and y intercept
to find out, simplify
3x+2y=4 and
6x+4y=8 are smae lien
also
y=3x+2 and
2y=6x+4 aer the same line

1 solution is when it is none of the above things
a normal thing, where the slopes are differnet
example
y=2x+2
y=3x+2

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Find the coordinates of the midpoint of the segment with the given endpoint S(-1,5) and T(7, -2)

qaws [65]

Answer:

The answer is

<h2> $(3 \: , \: \frac{3}{2} )$ </h2>

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

$M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} ) \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

S(-1,5) and T(7, -2)

The midpoint is

$M = ( \frac{ - 1 + 7}{2} \: , \: \frac{ - 2 + 5}{2} ) \\ = ( \frac{6}{2} \: , \: \frac{3}{2} )$

We have the final answer as

$(3 \: , \: \frac{3}{2} ) \\$

Hope this helps you

4 0

3 years ago

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geniusboy [140]

The first one is right

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2 years ago

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8090 [49]

Answer:

A and D

Step-by-step explanation:

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