What is the value of b? The equation

X2

242

= 1 represents a hyperbola centered

b2

10

at the origin with a directrix of x = -

576

26

16

20

26

Vertices: (-a),(a,0)

Foci: (-c0)(0,0)

Asymptotes y the

Vertices: (0.-a),(0.a)

Foci (0.-c).(0.c)

Asymptotes y-***

Directrices x-

Directrices Y-

Standard Equation

Standard Equation

1

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?