C(x)={0.35 if x ≤8,000 0.75 if 8,000
sketch a graph to model seattle’s cost structure over the domain [0, 42000]. be sure to label the axes and any endpoints where the graph breaks. (5 points)
can you include the break points?

Given: abcd is a square. prove: ac ? bd. we are given that abcd is a square. if we consider triangle aeb and triangle aed, we see that side is congruent to side ad because sides of a square are congruent. we know that side ae is congruent to side ae by using the . finally, we know that side de is congruent to side because the diagonals of a square bisect each other. therefore, triangle aeb is congruent to triangle aed by congruency. we see that angle aed and angle aeb are a linear pair, and congruent by cpctc. thus, the measure of these angles will be 90°, and diagonal ac is perpendicular to diagonal bd by the .