A translation moves point V(-2, 3) to V -2,7). Which are true statements about the translation?
-The point moves two units left and four units up.
-The transformation rule is (x, y) = (x+0.7+4).
-The transformation is a vertical translation.
-The image is four units to the left of the pre-image.
-The translation can be described as (x, y) → (x-2y+7).

Is this a polynomial function? i need to know asap

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?

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)