Eevaluate the expression −8x + 5 − 2x − 4 + 5x when x = 2 before and after simplifying. which method do you prefer? explain.

Before simplifying:

−8x + 5 − 2x − 4 + 5x

= −8*2 + 5 − 2*2 − 4 + 5*2

= -16 + 5 - 4 - 4 + 10

= -9

After simplifying:

−8x + 5 − 2x − 4 + 5x

= -5x + 1

= -5*2 + 1

= -10 + 1

= -9

I prefer evaluating the expression after simplifying because it is quicker, as there are less individual values to add together at the end. Therefore, it is easier to avoid mistakes.

were is the equation

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

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