Look at the graph.
Where x = 12, find what y is.
For example, where x = 10, y is 15.
Now find what y is when x = 15.
You should now have 2 points: (12,y1), and (15,y2).
Now use the slope formula (y2-y1)/(x2-x1) to find the average rate of change. (x1 is 12, and x2 is 15)
If you use the distributive property, you will multiply 4 by 2x to get 8x and 4 by -4 to get -16.
8x-16=8x+k
If you want infinitely many solutions the equations on both sides of the equal sign need to be the same. So, k would need to be -16.
300 = 5t + 150
150 = 5t
30 = t
1990+ 30 = 2020
Answer:
6 would be opposite
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Answer:
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