Answer:
There is an easy way to tell whether the graph of a quadratic function opens upward or downward: if the leading coefficient is greater than zero, the parabola opens upward, and if the leading coefficient is less than zero, the parabola opens downward.
Step-by-step explanation
Answer:
W= 2
Step-by-step explanation:
Answer:ok
Step-by-step explanation:A=23
Answer:
t=-3
because if you multiply -7 by 3 and then subtract, you will get 20
