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Worksheets8B, 4A, 4C, 9E Writing Functions
Total questions: 12
Worksheet time: 56mins
Name
Class
Date
1.
Graph has a slope of 1/2 and a y- intercept of 1. Write the equation in slope - intercept form
a)
y = 1x+1/2
b)
y = 1/2x + 1
2.
The object was thrown or launched from what position?
a)
At the ground
b)
Above the ground
c)
Below the ground
3.
Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.
a)
y=5000(0.7)x
b)
y=30(5000)x
c)
y=5000(1.3)x
d)
y=5000xx
4.
Find the equation of the line of best fit for this table.
a)
y = 4.64x + 7.79
b)
y = 7.79x + 4.64
c)
y = 0.98x + 0.99
d)
y = 4.64x + 0.99
5.
The correlation coefficient is a number "r" such that:
a)
-1<r<1
b)
-1>r>1
c)
-1≤r≤1
d)
-1≥r≤1
6.
The drama club sold tickets to a play for $5 each. They also made $55 in soda and popcorn sales. If the drama club made a total of $290, how many tickets were sold?
a)
47
b)
58
c)
69
d)
113
7.
The quadratic equation that can produce this table is what?
a)
f(x) = 4x2 + 4
b)
f(x) = -4x2 - 4
c)
f(x) = 4x2 - 4
d)
f(x) = -4x2 + 4
8.
Create a function for the pictured table.
a)
f(x)=3(4)x
b)
f(x)=4(3)x
c)
f(x)=3x+4
d)
f(x)=4(1/3)x
9.
Which sentence describes the relationship shown on this scatterplot?
a)
As the temperature decreases, the visitors increase.
b)
As the temperature increases, the number of visitors increases.
c)
As the visitors increase, the temperature decreases.
d)
No correlation
10.
As x increases, y increases
a)
correlation coefficient
b)
causation
c)
positive correlation
d)
negative correlation
11.
The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the exponential equation?
a)
y=8(15,000)x
b)
y=15,000(1.08)x
c)
y=15,000(0.92)x
d)
y=15,000(0.08)x
12.
An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation s(t) = –16t2 + 64t + 80. What will be the object's maximum height?
a)
2 ft
b)
80 ft
c)
144 ft
d)
64 ft
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