After being up all night, can not focus during morning classes. Too much busy work.
x^2+7x-3x-21=x^2+x+5x+5 x^2+4x-21=x^2+6x+5 Do you know what to do after FOILing and then combining like terms?
g(x) is like a y. What x values could one or could one not insert to get a y value out? Domain is like x and range is like y. x could not be 4/3 because 4/3 times 3/1 equals 4 and 4-4=0 and one can not definitively divide anything by zero.
Find common denominators. -7/6 is an improper fraction for -1 1/6. It doesn't matter whether the negative sign is in the numerator or the denominator.
2x-10=20x -10=18x -10/18=x -5/9=x
36-6 sqrt 2 + 6 sqrt 2 - 2 by FOILing it 34- 6 sqrt 2 + 6 sqrt 2 by combining like terms 34
Take away 8 and 3x=3x+2. Take away 3x and 0x= 0x+ 2 Take anything times zero and you get zero back, so 0=0+2 Zero does not equal 2, so there is no way to do this. 0x=2 Division by zero is undefined.
Origin is (0,0).
sqrt (x+3)=7 after subtracting 1 square each side to knock out the sqrt x+3=7^2 x+3=49 x= 46
Parallel lines have the same slope y= 6-2x y=-2x+6 slope = -2/1 and y intercept = (0, 6) Use point slope form (you have a slope a point)
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