It is -1, you first make the -1 positive but then the negative sign outside makes that 1 turn -1
Down, the line is going down
You would use PEMDAS to solve this:
0.8 x 1.5 = 1.2
4 + 1.2 - 3
5.2 - 3
2.2 is your answer
Its 49/8
The 1st step is yo multiply 6 times 8 to get 48 so 48 goes on top
The 2nd step is you add 1 so you get 49
The 3rd step is you wil habe 49/8 you don't change the bottom number your final answer 49/8
The given range can help us to determine whether the graph of a quadratic function opens up or down.
If the range is [ 4, + ∞ ) it has a minimum point with coordinates ( x, 4 ). The vertex is the lowest point on the graph.
Answer: The graph opens up.