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Mathematics 20 Online
OpenStudy (anonymous):

y = 5x + 4 y = 9x + 5

Directrix (directrix):

Are we to solve for x and y in these equations? @c.ahumada_99

OpenStudy (aravindg):

subtract eqn 1 from eqn 2 what do u get ?

OpenStudy (anonymous):

solving the system of equation using substitution.

OpenStudy (aravindg):

ok from first eqn y=5x+4 replace y in 2nd equation with 5x+4 and solve for x

Directrix (directrix):

y = 5x + 4 y = 9x + 5 =========== By substitution. 5x + 4 = 9x + 5 @c.ahumada_99 See what you get when you solve this for x.

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