Answer:
A) y ≥ -4
Step-by-step explanation:
The range of a function basically represents all of the y values that a function encompasses (I hope that makes sense, if not, please let me know).
In this graph, since the parabola has a vertex at (1, -4), the range includes y values only greater than or equal to -4. The function does not include y values lower than -4. Therefore, the range must be y ≥ -4.
1. 4 5.-22 9.-60 13.-85
2.-7 6.-33 10.33 14.-21
3.-36 7.87 11.-78 15.-23
4. 78 8.55 12.24 16.149

has characteristic equation

which has roots at

. The negative root has multiplicity 2. So the general solution is
Just read what it says not that hard go to the left twice and go up 4 units.
Hope you have a good day
Because there was a pay rise, we can write the equation as x+0.04x = 24.492 and solve for x.
x+0.04x = 24.492
1.04x = 24.492
x=23.55
His original pay was £23.55