Download Which equation represents a direct proportion? a. y

CRCT Review #6
The volume of a crab's aquarium is 512
cubic centimeters. What is the length of
one side?
A line has a slope of ­5 and passes through (1, ­1).
Which is the equation of the line in point­slope
form?
a. y ­ 1 = ­5 (x + 1)
Which equation represents a direct proportion?
a. y = x ­ 2
b. y ­ 5 = x ­ 1
b. y = x + 2
c. y + 1 = ­5 (x ­ 1)
c. y = 2/x
d. y + 1 = ­5 (x + 1)
d. y = 2x
A box of pencils of 20 pencils costs $1.90. A box of
50 pencils has the same unit price as a box of 20
pencils. What is the cost of 50 pencils?
a. $0.76
b. $3.80
Ollie the Octopus can eat 375 fish eggs in 5 minutes. If
he eats for 25 minutes at that rate, how many fish eggs
will he have eaten?
a. 1,875
b. 1,700
c. 1,625
c. $4.25
d. 1,500
d. $4.75
Which equation represents the linear relationship
between x and y?
x
0 1 2 3 4
y
1 ­1 ­3 ­5 ­7
Write 5.34 as a fraction
a. y = x ­ 2
b. y = ­x + 1
c. y = ­2x + 1
d. y = 2x ­ 1
Two jets, Jet 1 and Jet 2, are cruising
at a constant rate of speed. The
1600
equation y=575x shows the total
distance, y, in miles, traveled by jet 1 1200
over x hours. The graph shows the
800
same for jet 2.
400
Which is true?
a. Jet 1 is traveling faster than Jet 2.
b. Jet 2 is traveling faster than Jet 1.
c. The jets are traveling at the same
speed.
d. Jet 1 is sometimes faster and
sometimes slower than jet 2.
0
Jet 2
1
2
Which describes the line
represented by these equations?
3
4
Triangle ABC is rotated 90o
clockwise to create triangle
EDC. Which angle is
A
B?
congruent to
B
E
5
C
D
Which side is congruent to AC?
Pink # 1­19 Q & A
y = 1/2 x ­ 4
2y = x + 2
a. coincident lines
b. intersecting lines
c. parallel lines
d. vertical lines
HW: finish pink # 20­50