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For the first one, do you know the equation or slope atleast of each line?
for the one on the far right i believe m=2
and the one on the left m= -1/2 ?
Correct on the first one, the second one is slightly off with your numerator though Looking at the answer choices and the graphs for the first one, I don't see an answer, because neither of the graphs have a slope of 1
what is the slope for the second one?
You go right 3 and down 2 to get an exact slope, making it -3/2
The answer choices ask for -x or x, which is -1 or 1, but neither line shows this
isn't it rise over run though? i'm kind of confused
oh wait no, okay i got it :)
so none of the answers are correct?
I don't see the answer on the first one. Not sure if the teacher messed up or something
aw okay thanks, could you help me on the second problem ?
Sure After doing the second one, that one has an answer So for the X>2 part of the peicewise, you have when x = 0, y= 1 and when x= -2, y = 5 From there, would you know how to find the slope?
how did you get those points?
So when we look at the second one, we have to dots Now, when we're on the X axis (The one going horizontally), what does y always equal? And when were on the Y axis, what does x always equal?
5 and 0?
Right on the second one. The x would always equal 0 since y axis is always a straight line For the first answer though, the x axis is always a straight line too, correct? So y would also equal what?
Exactly! So for this problem, the lower dot shows a 1 on the y axis, so we have y=1. Since the dot is on one of those axis (The straight line), what would the x coordinate be?
Correct, so the first point was (0,1), aka x = 0, and y =1 Now for the second point. The dot has two numbers associated with it. You always do the X number first and then the Y
okay but shouldn't that 2 be a negative two?.. since its going left