Complete the square to re-write the quadratic function in vertex form:
y= 2² + 4x – 9

Can you answer my question? will mark brainiest!

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

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?