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25 pts ! thank you in advance

answer:

y = 3x² + 6x + 1

Step-by-step explanation:

y = a(x - h)² + k

(h,k) is (-1,-2)

y = a(x-(-1))² - 2

y = a(x + 1)² - 2

When x = 0, y = 1

1 = a(0 + 1)² - 2

3 = a

y = 3(x + 1)² - 2

y = 3(x² + 2x + 1) - 2

y = 3x² + 6x + 3 - 2

y = 3x² + 6x + 1

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

yes

step-by-step explanation: