Use the upper and lower sums to approximate the area of the region using the given number of subintervals (of equal width) y=sqrt(1-x^2) i was able to find the upper sum, which was 0.895, but i cannot find the lower sum. i have gotten 0.824 and 0.659 as answers, but neither are considered correct.

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

only 10/60 isn't equivalent

hope this : )