Page 18 of 20 Question 18 (2 points) If a cost function is defined by C(x)= 5x-200, then its graph is a line having a following property: Oa) it is crossing x-axis at -200 and its slope is positive Ob) it is crossing x-axis at +200 and its slope is positive O c) it is crossing y-axis at +200 and its slope is positive O d) it is crossing y-axis at -200 and its slope is negative Oe) none of given answers is correct Page 18 of 20 Next Page