4x=3y+3 and 6y= 8x+ 36 and y=3x-1 and y= 6- x/3
4x=3y+3 and 6y= 8x are parallel and y=3x-1 and y= 6- x/3 are perpendicular.
See the attached plot for answer.
Answer:
Question 6: -8
Question 7: C
Step-by-step explanation:
Question 6:
The reason question 6 is -8 is because of the distance in between each number, e.g -7 and -15. This is not to be confused with + 8 each time that would make the sequence 9, 18, 27.
Question 7:
The way we solve this question is using the nth term rule, whatever is before the n is the times tables we follow. So if it is 2n the sequence would be 2, 4, 6, 8 etc. However when we add something like the -2 we do the 2 times tables but this time we -2 for each one. Example: 2 - 2 = 0 so the first number of the sequence is 0, Example 2: 4-2 = 2 so the second number of the sequence is 2.
Question:
Select expression that is mathematically equivalent to

a) 
b) 
c) 
d) 
Answer:

Step-by-step explanation:
Given

Required
Determine its equivalent
Start by writing y - z in bracket;

becomes

When - is used as divide, it is equivalent to /
The given expression can then be rewritten as

Hence;
<em />
<em> is equivalent to </em>
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8. C
9. C
10. A
Hope this helped!