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andre [41]
3 years ago
9

Solve the system by graphing

Mathematics
1 answer:
trapecia [35]3 years ago
8 0

Solve the system by graphing  

{y = 7 - x   the slope is -1 and the y intercept is 7

{x + 3y = 11   3y = -x+11  y = 1/3 x + 11/3  the slope is 1/3 and the y intercept is 11/3

The solution is x=5, y=2   you will need to graph



Classify the system without graphing

{2x + y = 3      y = -2x+3      

{y = -2x - 1

These lines are parallel   same slope different y intercept

C) Inconsistent System



Classify the system without graphing  

{x + 3y = 9

{-2x - 6y = -18   divide by -2

x+3y = 9

same line

A) Dependent System


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