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Who knows how to do absolute value graphing f(x)=[2x-1]?HOME WORK HELP!!!

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f(x) means y, so the equation is y = 2x - 1
subsitute any number you want for x, as long as it will work for your graph
then you have an x value (the # you chose) and a y value (the answer you got)
graph that, and then do it using the other sign (add or subtract)
example: you can subsitute 1 for x
y = 2 x 1 - 1, easy enough
2 x 1 = 2, 2 - 1 = 1
so y = 1, and you put x as 1, so x = 1
your point on the graph is (1,1)
but the absolute value means the number's distance from zero, so 7 is equal
to -7 because they are both 7 places away from zero
so when you are talking about absolute value, inside the brackets, a subtraction sign means you have to subtract AND add, in two seperate problems so now the other one is y = 2x + 1
you have to use the same x value as you did the first time when you subtracted
y = 2 x 1 + 1, and that equals 3
so that time x = 1, and y = 3, and you have (1,3)
do this for as many numbers you need, for both adding and subtracting, since
it's an absolute value problem
And by the way, you can chose zero too, which is the easiest number
to do for x
I hope I helped! : )