Use the law of exponents to rewrite (4x2)^9

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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?