For what values of the variable is each rational expression undefined 2x-3/2x-1( step by step please)

2 answers:

6 0

$\frac{2x-3}{2x-1}\\\\Rational\ expression\ unde fined\ if\ 2x-1=0\\\\2x=1\ \ \ \ /:2\\\\x=\frac{1}{2}\leftarrow answer$

swat322 years ago

3 0

'Undefined' typically means division by zero ... what some people would
look at and call it "infinity".

Any fraction is undefined when its denominator is zero.

2x - 1 = 0

Add 1 to each side:

2x = 1

Divide each side by 2 :

<u>x = 1/2 .</u>

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puteri [66]

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2 years ago

Please help this is hard math

Rainbow [258]

Answer:

$y=-4x+2$

Step-by-step explanation:

First we find the slope of the line AB passing through the point (2,0)
line AB is perpendicular to the line $y=\frac{1}{4}x-3$ , this equation is slope intercept for, which is $y=mx+b$ so our m or slope is $\frac{1}{4}$
Since the slope of line AB is perpendicular to $m=\frac{1}{4}$ then we use the equation $slope of line1\times slopeofline2=-1$ , so what do we multiply $\frac{1}{4}$ by to get -1? -4 right, so that's the slope of line AB with the point (2,0)
Now line CD is parallel to line AB, that means it has the same slope as AB, so slope of CD is -4
So we make the equation $y-y_1=m(x-x_1)$ so m= -4 and our point is (-1,6)
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