Quiz-MTH 4151b
Shang-Jung Lee
Created on February 24, 2022
Linear function - substitute x to find y - substitute y to find x - finding the rule (from graph and description)
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math
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linear function
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Cost'y'is $7.25
Cost'y'is $10.40
Cost'y'is $6.65
The relationship between the cost of the taxi ride (y) and distance travelled (x) can be expressed asy = 1.9x + 3.75Use the equation to estimate the cost of travelling 3.5 km in a taxi.
1/5
Ex. In an equation y = 1.75x+3.45. If x = 5, what is the corresponding y?
rightanswer
In y = 1.9x +3.75x =distance, y = costx = 3.5, find the corresponding y-value
The relationship between the cost of the taxi ride (y) and distance travelled (x) can be expressed asy = 1.9x + 3.75Use the equation to estimate how far you can travel with $50
2/5
You can travel24 km
You can travel25 km
You can travel44 km
rightanswer
x = distance travelledy = costy = 1.9x +3.75Set y = 50, find the corresponding x-value
Find the equation for this line:
3/5
y = -0.67x + 12
y = 0.67x - 1
y = 1.5x -8.5
rightanswer
Just an example... Your answer could be slightly different!
4/5
Going to see the latest action movie in theatre!x = price of an adult tickety = price of a child ticketExpress the following scenario as an equation (with x and y)2 adult tickets and 5 child tickets cost a total of $91
x + y = 91
2x + 5y = 91
7xy = 91
rightanswer
x = price of an adult tickety = price of a child ticket2 adult tickets => 2x5 child tickets => 5yTogether, they cost $912x + 5y = 91
x = price of an adult tickety = price of a child ticket2 adult tickets and 5 child tickets cost $91OR 2x + 5y = 91If child ticket is $11 each, what is the price of an adult ticket?
5/5
Adult ticket'y' is $18
Adult ticket'y'is $16
Adult ticket'x'$13.8
rightanswer
2x + 5y = 91And y (price of a child ticket) is $11
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