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Mathematics 18 Online
OpenStudy (anonymous):

help please

OpenStudy (anonymous):

OpenStudy (sptogl):

with what

OpenStudy (sptogl):

oh ok

OpenStudy (sptogl):

idk sorry

OpenStudy (anonymous):

@UsukiDoll @zepdrix

Directrix (directrix):

If 3/5 is a possible root for a linear function, then (x - 3/5) must be part of the function.

OpenStudy (anonymous):

ok

Directrix (directrix):

I might write it as y = (x - 3/5)*5 = y = 5x - 3 which clears the decimal.

OpenStudy (anonymous):

ok

Directrix (directrix):

In functional notation, f(x) = 5x - 3 f(3/5) = 5* (3/5) - 3 f(3/5) = 3 -3 = 0.

OpenStudy (anonymous):

ok

Directrix (directrix):

3/5 is a root of the function because it is a value of x for f(x) which has a y-value of 0. The root is an x-intercept of the graph of the function and lies on the x-axis.

Directrix (directrix):

Because 3/5 is a root of the f(x), the expression (x - 3/5 ) is a factor of f(x).

OpenStudy (anonymous):

thank you so much!!

Directrix (directrix):

You are welcome.

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