Mathematics 9
Quiz by Marny Bulac
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- Q 1/17Score 0
Question No. 1
29p2 - 2p - 8
p2 - 4p - 2
p2 - 2
p2 - 8
- Q1
Question No. 1
p2 - 2p - 8
p2 - 4p - 2
p2 - 2
p2 - 8
30s - Q2
Which of the following values of x is a solution of the equation below?
x2 = 256
-16
128
512
-4
30s - Q3
Which of the following is equivalent to the expression below?
x2 - 144
(x -12) (x + 12)
(x -1) (x - 144)
(x -12) (x - 12)
(x -1) (x + 144)
30s - Q4
Which is the graph of y = -2 (x-1)2 + 1?
30s - Q5
The height in meters of a projectile can be modeled by where t is the time (in seconds) the object has been in the air, v is the initial velocity (in meters per second)and s is the initial height (in meters). A soccer ball is kicked upward from the ground and flies through the air with an initial vertical velocity of 4.9meters per second. Approximately, after how many seconds does it land?
1
0.01
0.1
10
30s - Q6
Question No. 6
30s - Q7
Is sin 3310 positive, negative or zero?
Zero
Negative
Positive
30s - Q8
Question No. 8
1.75
3
3.5
7
30s - Q9
The total cost of gasoline varies directly with the number of gallons purchased. Gas costs $1.89 per gallon. Write a direct variation to model the total cost c for g gallons of gas.
c = g - 1.89
c= g + 1.89
c= 1.89g
g= 1.89c
30s - Q10
The time t required to drive a certain distance varies inversely with the speed r. If it takes 2 hours to drive the distance at 30 miles per hour, how long will it take to drive the same distance at 50 miles per hour?
about 3.33 hours
1.2 hours
750 hours
60 hours
30s - Q11
Find the constant of variation k for the inverse variation. Then write an equation for the inverse variation.
y 4.5 when x =3
k = 1.5;y = 1.5x
k = 13.5;13.5y = x
k = 1.5; y= 13
k = 13.5;xy = 13.5
30s - Q12
Question No. 12
asymptote: x = 3 and hole: x = 5
asymptote: x = - 3 and x = -5
asymptote: x = - 3 and hole: x = -5
asymptote: x = - 2 and hole: x = -3
30s - Q13
Question No. 13
no horizontal asymptote
y =1
y =0
y =3/7
30s - Q14
Question No. 14
y - 2; y ≠ 7
-y + 2; y ≠ 7
-y - 2; y ≠ -7
y + 2; y ≠ -7
30s - Q15
What are the domain and range of
y = - 8(x-9)2 + 2?
30s
