Answer:
The first one ( vertical line )
Step-by-step explanation:
The graph is not a function because it doesn't pass the vertical line test.
The vertical line test is a test which uses a vertical line to make sure the graph does not have any mutual y values for distinct x values.
Also, the equation for the line is x=3 which doesn't represent y as a function of x.
Answer:
The two numbers are 6 and 12.
Step-by-step explanation:
So, let's start off, with x+y = 18 and x-y = 6.
Algebraically, we can add the above two equation sets, and we find out that 2x = 24, so x = 12. And then, it says the other number must be 6.
You start with a number that when added to the second number you will get 18 and when you subtract the second number from the first you will get 6. The difference between the above two results is 12.
So that difference of 12 is twice the second number; that means the second number is 6. And then using either of the given pieces of information, you can find that the first number is 12.
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In conclusion:
6 + 12 = 18
12 - 18 = 6
Answer:
176cm³
Step-by-step explanation:
Multiply area of base times height
22cm² × 8cm = 176cm³
48 adult tickets and 24 children tickets were sold.
Step-by-step explanation:
Given,
Cost of one adult ticket = $8
Cost of one child ticket = $3
Total worth of sold tickets = $456
Let,
Number of adult tickets sold = x
Number of child ticket sold = y
According to given statement;
8x+3y=456 Eqn 1
x = 2y Eqn 2
Putting value of x from Eqn 1 in Eqn 2
Dividing both sides by 19
Putting y=24 in Eqn 2
48 adult tickets and 24 children tickets were sold.
Keywords: linear equation, substitution method
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