Answer:
1: proportional
2: non-proportional
3: non-proportional
4: non-proportional
5: proportional
6: proportional
7: non-proportional
8: proportional
9. proportional.
10. proportional.
11. non-proportional.
12. proportional.
Step-by-step explanation:
I'm unsure how the proportional ones are actually calculated depending if it requires a dot on the exact origin, but depending on what I can graphically view and assume; every graph with the line running through the origin is proportional and every graph where the line does not run through the origin is non-proportional.
Yes, because you can multiply $3 by 3 to get $9 and 6 muffins by 3 to get 9 muffins.
Answer:
2x + 3y = 0
Step-by-step explanation:
It is clear from the graph that the straight line passes through the point (0,0) i.e. origin.
So, in the slope-intercept form of the equation, there will be no y-intercept.
Hence, the equation of the straight line will be simply y = mx ...... (1)
Now, it is already shown in the graph that the straight line (1) passes through the point (3,-2) point.
So, from equation (1), -2 = 3m, ⇒
Therefore, the equation (1) becomes
⇒ 2x + 3y = 0 (Answer)
There is already a derived formula for this type of series. This is arithmetic series. It consists of a group of numbers arranged to together with a common difference. For this series, the common difference is 2. See the pattern: 4-2 = 2, 6 - 4 = 2, 8 - 6 = 2, 10- 8=2
The formula for an arithmetic series is
An = A1 + (n-1)d
where An is the nth term of the series, A1 is the 1st term, n is the number of terms and d is the common difference.