Base should look like __ from above. _ _ |_||_| |_| _ |_||_| If you were to look at the bottom of the stacked cubes from the bottom it should look like __. _ _ |_||_| _ |_| |_||_|
<span>By rational root theorem the f '(x) has one rational root and factors to: </span> <span>f '(x) = (2x - 5)*(8x^2 - 28x + 19) </span>
<span>Using the quadratic formula to find it's two irrational real roots. </span> <span>The f "(x) = 48x^2 - 192x + 178 only has irrational real roots, use quadratic formula which will be the inflection points as well.</span>
For two lines to be parallel, they must have the same slope. 2 and -2 are not the same. For lines to be perpendicular, their slopes must be negative reciprocals (ex 5 and -1/5) The slopes of these lines are not the same or negative reciprocals, so they are not parallel or perpendicular.
