Answer:
x = 0
axis of symmbery = -b/2a or x vertex on quadratic equation
0/4=0
x=0
Step-by-step explanation:
Just divide 4.5 by 2.8 and you'll get the rate of decreasing degree per hour.
f(-2) = -1
-2 is x, so replace x as -2 into the equation
f (-2) = 2(-2) + 3
f (-2) = -4 + 3
f (-2) = -1
