Lines m and n are cut by a transversal l.

Which angle pair relationship should be used to prove lines m and n are parallel?

Angles 1 and 5 are congruent corresponding angles.
Angles 2 and 8 are supplementary alternate exterior angles.
Angles 3 and 6 are congruent with same-side interior angles.
Angles 4 and 6 are supplementary alternate interior angles.

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?