Hello,
answer in the jointed picture
Use the slope formula
y sub 2-y sub 1. all over
x sub 2-x sub 1.
so
2+5
-3-1
7/-4
aka -7/4
Answer:
For part a)
130 = 10/2[2a+(10-1)d]
Simplify, u get
2a + 9d = 26.................(1)
Also U5 = a + (5-1)d = 3a
Simplify, u get
a= 2d...................(2)
Substituting for a in equation 1,
2(2d)+9d= 26
Solving for d, we get
d = 2
In part b) substituting for d in equation 2 to get the first term
a = 2(2) = 4
Part c) the no. of terms required can be obtained by solving
28 = 4+(n-1)2
n = 13
Answer:
The 1st y with the 4th card
The 2nd y with the 3rg card
The 3th y with the 2nd card
The 4th y with the 1st card
