Recent content by spoke

You wrote "(2x + A)(x + B)" and "when adding A + 2B, they must give 3." for the equation 2x^2 + 3x - 5 Now my question is why 2B + A and not 2A + B? it is always like this? I am wondering because the coefficient 2 is in the same parenthesis as A in (2x + A)(x + B). So if it was a 3 instead...

2x^2+9x-5 here is the quadratic expression that I am trying to factor. Is there a way to factor this easily? I am getting confused on the signs. the book says the factor are: (2x-1)(x+5) but (-1)(2)+5=3 but why not (2x+5)(x-1)? and 5(2)=10-1=9 which looks like the correct answer...

So would this relation be an example constant function? {(1,2), (2,2), (3,2), (4,2)}

well then i don't know what a constant and nonconstant linear functions are. Because f(x)=x is linear when graphed, so i was assuming linear is synonymous the word constant. as in a constant rate of change or constant slope.

arent linear functions always constant?