1. Given the function h described by h(x) = 2x, find each of the following.

H(-8)
H(2)
H(21)

H(-8) =
H(2) =
H(21) =

Determine whether the graphs of the two lines are parallel.
Y + 3 = 5x
2x – y = -3

Are the graphs of the given equations parallel? Yes or no

Find an equation of the line having the given slope and containing the given point.
M= -4, (5,7)
The equation of the line is y =
(Simplify your answer. Type answer in the form y=mx+b using integers or fractions.)

Find the slope, if it exists, of the line containing the pair of points.
. (-6.6, 4.4) and (-6.2, 1.5)
The slope m =
(Simplify your answer. Type an integer or a fraction. Type N if the slope is undefined.)

Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form y=mx+b
(-5, 4); 6x=5y+7
The equation of the line is y=
(Simplify your answer. Use integers or fractions for any numbers in the expression)

8. Find the slope and the y-intercept.
6-1/2=3x
The slope is
The y-intercepts is 0,

14. Find the slope and the y-intercept of the line. Write the fractional answer in lowest terms.
Y = -1/3x – 10/9
The slope is =
(Type an integer or a fraction)
The Y-intercept is 0,
(Type an integer or a fraction)

17. Determine whether the graphs of the equations are perpendicular.
7x – 5y = 6 7y – 5x = 9
Are the graphs of the given equations perpendicular? Yes or No

20. Find an equation of the line containing the given pair of points.
(-7, -3) and (-4, -2)
The equation of the line is Y =
(Simplify your answer. Use integers or fractions for any numbers in the expression.)

21. The function W(d) = 0.112d approximates the amount, in centimeters, of water that results from d cm of snow melting. Find the amount of water that results from snow melting from depts. of 14 cm, 47 cm, and 82 cm.
14 cm of snow melting produces _____ cm of…