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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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linear function
Pop Quiz
math
1/5
The relationship between the cost of the taxi ride (y) and distance travelled (x) can be expressed as y = 1.9x + 3.75 Use the equation to estimate the cost of travelling 3.5 km in a taxi.
Cost 'y' is $6.65
Cost 'y' is $10.40
Cost 'y' is $7.25
In y = 1.9x +3.75 x =distance, y = cost x = 3.5, find the corresponding y-value
right answer
You can travel 44 km
You can travel 25 km
You can travel 24 km
2/5
The relationship between the cost of the taxi ride (y) and distance travelled (x) can be expressed as y = 1.9x + 3.75 Use the equation to estimate how far you can travel with $50
x = distance travelled y = cost y = 1.9x +3.75 Set y = 50, find the corresponding x-value
right answer
y = 1.5x -8.5
y = 0.67x - 1
y = -0.67x + 12
3/5
Find the equation for this line:
Just an example... Your answer could be slightly different!
right answer
7xy = 91
2x + 5y = 91
x + y = 91
Going to see the latest action movie in theatre! x = price of an adult ticket y = price of a child ticket Express the following scenario as an equation (with x and y) 2 adult tickets and 5 child tickets cost a total of $91
4/5
x = price of an adult ticket y = price of a child ticket 2 adult tickets => 2x 5 child tickets => 5y Together, they cost $91 2x + 5y = 91
right answer
Adult ticket 'x' $13.8
Adult ticket 'y' is $16
Adult ticket 'y' is $18
5/5
x = price of an adult ticket y = price of a child ticket 2 adult tickets and 5 child tickets cost $91 OR 2x + 5y = 91 If child ticket is $11 each, what is the price of an adult ticket?
2x + 5y = 91 And y (price of a child ticket) is $11
right answer
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