Simplify expressions 2y(y+3)+4y(y-1)

6y² + 2y

Step-by-step explanation:

Use distributive property:a*(b+c) =a*b + a*c

2y(y + 3) + 4y(y -1) =2y*y + 2y*3 + 4y*y - 4y*1

                             = 2y² + 6y + 4y² - 4y

                             = 2y² + 4y² + 6y - 4y      {Combine like terms}

                             = 6y² + 2y

the answer

b. they are parallel and will never intersect.

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

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