Count change of signs to tell positive roots
then replace x with -x and evaluate, then count change in sign for negative roots
initially
+, -, -, +, +, -
3 changes
3 or 1 positive roots
replacing x with -x
-,-,+,+,-,-
2 changes
2 or 0 negative roots
B is answer
Multiply the price by (1 + sales tax).
85 x (1+0.07)
85 x 1.07 = 90.95
He will pay $90.95
Answer: (-5,1)
Step-by-step explanation:
To the left 5 units turns our 0 into negative 5 (-5) and going down on the y axis by 1 is 1 instead of 2 so the new point is (-5,1)
Answer:12.8
Step-by-step explanation:
Answer:
the first one
Step-by-step explanation:
