question 18...why is m=-a/b is this because the slope is negetive? for a positive slope would it be +a? then to find slope...why wouldnt y2-y1/x2-x1 work? please anyone who understands can explain thank you
If you are talking about for how you get -12 and 2, it’s because you set those factors equal to 0. So it would be z+12=0 and z-2=0. So when you solve for z in these two equations you would end up subtracting 12 for the first one and then adding 2 for the second equation. Let me know if you have any other questions
It’s depends because of the adaptive version they use now. If you do well on first module the second one gets harder but questions are worth more points. I had to take the adaptive PSAT 10 and some of the questions on the second module made absolutely know sense it was ridiculously hard
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