the x s are the independent variable so any direct change to them is changing the independent. like the second one has -5 on the x
I suggest reading them over and over again to remember them. I know it sounds annoying, but trust me, it'll pay off.
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i need it
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Infinite
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I hope this helps, if it doesn't then just message me and ill be more than happy to help :)
Yes and no. A negative number and it's opposite are 'integers.' Yes, a negative and a negative multiplied together give you a positive. The two negative signs cancel out making it positive. But no, a positive and a positive multiplied together do not give you a negative. When you subtract positive numbers you can get a negative, but not when multiplying. If you were to do a positive times a negative it would be negative because the positive can't cancel it out. Example: -3 · -3 = 9. [] 3 · 3 = 9. [] -3 · 3 = -9. Other than the positive number part, the statement is true about the negatives. I hope that helped!