You have the correct axis of symmetry value. Nice work.
Plug that x value into the equation to get...
y = -2x^2 - 12x - 10
y = -2*(-3)^2 - 12*(-3) - 10 <<-- replace every x with -3; then use PEMDAS
y = -2*(9) - 12*(-3) - 10
y = -18 + 36 - 10
y = 18 - 10
y = 8
The vertex is the ordered pair (-3, 8)
Note: the axis of symmetry is the vertical line through the vertex
Answer:
0.86
Step-by-step explanation:
just look at the second and third number to see if it can round or not
I’m 100% sure you can check “the answer will be larger than 550”
I don’t really know about the others sorry!
Answer: 5/1
Step-by-step explanation:
After 5 hours, it would be at zero. And 100 divided by 4, is 20. Meaning that the slope is 5/1, or 5.
