Given the linear equation y = ax + b, for what values of x will y < 0?
(1) b = 3
(2) a < 0
Looking at a high level, it's a linear equation and any linear eqn has infinite solutions. If i am running out of time, a cursory look at the question will tell me that even if i know the line equation , i can't find all the solutions. I will mark E in less than 30 sec and move on.
Remember the equation of a slope point form. y=mx+c.
1)gives us the y intercept, but we don't know the slope so can't say anything.
2)this tells us that the slope is negative. Not much help.
1+2 -> Still doesn't give equation of a line. Note that even if we have the equation, we can't possibly give all the values of x .-> E.