Answer:
k(-1) = 7.
Step-by-step explanation:
k(-1) is the value of the function k when x = -1.
You read this off the graph.
Find the value of the point on the graph which corresponds to x = -1. From x = -1 on the horizontal axis move straight up until you meet the graph of k. Now look horizontally to the right and read off the value on the vertical
y-axis
You'll find it is 7.
Answer is below
Add 9 to both sides.
Divide both sides by 6
13.375
you have to add 28 ± 17 = 45 ± 8.857 = 13.375
7.8/10
4/10+38/100=7.8/10
B.
3(n+1)=2(n+4)
3 × n + 3 × 1 = 2 × n + 2 × 4
3n + 3 = 2n + 8
3n - 2n = 8 - 3 we regroup by categories (unknown and number)
n = 5
