Which expression shows you how you can use mental math to simplify the expression 9×15×2 most easily?
1 answer:
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The new function moved up by 8 units from the original.
The only difference in the functions is the y-intercept. The slope remained the same (), but the y-intercept went up by 8, meaning the function moved up 8 units.
See the attached image for a graph of both functions. The new function is the solid blue line.
