Answer:
-8x^2+6x-20
Step-by-step explanation:
2(x^2+3x)-10(x^2+2)
2x^2+6x-10x^2-20
(2x^2-10x^2)+6x-20
-8x^2+6x-20
(3x + 1) + (x2 - 6)
x2 + 3x - 5
Yes, because each input value corresponds to exactly one output value.Yes, because the outputs increase as the inputs increase.No, because the graph is not continuous.No, because the curve indicates that the rate of change is not constant.
The answer is 1680. To get this you do 8*7*6*5 because there are 8 options for the first character, and then you can repeat that for the second one with 7, 6, and 5