Can someone help me with this pls

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Which equation represents the function on the graph?

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.