9. The path of a freestyle skier's reverse somersault can be illustrated by the graph of the function h= -51° +10t +3, where h is the height, in meters above the ground and t is the time, in
seconds, after the skier leaves the ski jump.
a) Rough sketch the graph of the skier's height vs time
(include the y-intercept point)
b) What is the height of the skier at 1.5 seconds?
c) Convert the equation to "Vertex Form"

The skier's maximum height occurs at___
when the time is
?

d) When does the skier make contact with the ground?

Pranza plotted point a in the coordinate plane below.

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?

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)