What are the roots of the quadratic equation whose related function is graphed at the bottom? a) -1 and 1
b) 1 and 4
c)-1 and 3
d) -3 and 1

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.