Pretty sure the answer is k
-15 is the smaller number because the further you go into the negatives like -30, -47, -52; youre getting further away from 0 and after 0 are positive numbers so -15 would be the smaller number
90 for the first one
120 for the second one
As <em>x</em> approaches -1 from the left, the graph of <em>f(x)</em> leads you to the point (-1, 3), so the limit from the left is 3.
As <em>x</em> approaches -1 from the right, the graph leads to the point (-1, -3), so the limit from the right is -3.
The one-sided limits do not match, so the two-sided limit does not exist.
But <em>f(x)</em> is still defined at <em>x</em> = -1; this is indicated by the point (-1, -1). So <em>f</em> (-1) = -1.
Third one hope this helped
