Simplify each expression, then explain what property was used:
1. 6s + 2
simplified expression:
explanation:
2. s + 2s + 9 + s
simplified expression:
explanation:
3. 4(2s + r)
simplified expression:
explanation:
combine like terms:
4. -3r - 3 + r + 7
5. 5s + 2s^ - 5s + 4s^
8. use the model below to find the area:
9. use the model below to find the side lengths:

left 3, up 4

step-by-step explanation:

just count the values of x & y of the vertex of the graph and see how many units in the x and y direction will get you from the f(x) graph to the f(x) graph

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.