Heart 1 is translated 3 units down to heart 2. Which shows this transformation? On a coordinate plane, heart 1 is shifted 4 units down and 4 units to the right. On a coordinate plane, heart 1 is reflected across the x-axis to heart 2. On a coordinate plane, heart 1 is shifted 4 units to the right and is rotated to form heart 2. On a coordinate plane, heart 1 is shifted down 3 units to form heart 2.

D. On a coordinate plane, heart 1 is shifted down 3 units to form heart 2.

Step-by-step explanation:

From the list of given options, the last option answer the question (see attachment for illustration)

The first option describes down and right shifts of the preimage of the heart

The second describes reflection

The third describes rotation

Only option 4 describes down shifting and it was shifted by exactly 3 units as stated in the question.

452,489 to the nearest thousand is 452,000

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.