5 mi/h; the speed is 5 mi/hr
-1/2
1/4
y = -2x
-1.25 gallons/h or -5/4 gallons/h;the amount of gasoline
in tank decreases by 1.25 gallons every hour of driving
-14
not direct
variation
y = -1/2x - 1/2
y = 5/2x
0 ft/min; the height is constant at
150 ft
1
17.5
y = 1/3x
yes
y = -2.5x
y = 1/4x - 3
7/3
or
or
p = .25s + 75
$275
$75; this is pay if you have $0 in sales
y + 2 = 2(x - 5)
y - 2 = 3/4(x - 0)
or y - 3 = 3/4 x
y + 21 = -3(x + 3)
y - 4 = 0(x - 3)
or y - 4 = 0
y - 3 = 1/3(x - 4)
or y - 1 = 1/3(x + 2)
y + 4 = -6/5(x - 5)
or y - 2 = -6/5(x - 0)
(2,0)
(0,5)
-3x + 5y = 35
y - 0 = 1/2(x + 1)
or y + 1 = 1/2(x + 3)
(8, 0)
(0,-13)
x + 3y = 6
(-1, 0)
(0,-1/3)
-4x + 3y = -15
y + 1 = 5(x - 2)
y= 5x - 11
y - 5 = 1/3(x - 3)
y = 1/3 x + 4
y + 5 = 9(x - 0)
y = 9x - 5
y - 10 = -1/8(x - 4)
y = -1/8x + 10.5
parallel
both lines have a slope of 6
neither
2/5 and 5/2 are not the same
or opposite reciprocals
none
negative
positive
Using the points (0, 0) and (10, 35)
y = 3.5x
x
0
5
10
15
20
25
30
Pounds of Poultry Consumed
100
y = 1.28x + 30
about 88 pounds
80
60
40
20
0
(translated right 2)
(translated down 3)
20
40
60
80
Years after 1970
(translated left 3)
100