Hello,
y - 1 = -7x + 21
So y = 1
x = 21/7
First term = T(1) is obtained by plugging n = 1 into the formula,
thus First term = 1^2 - 4 = 1 - 4
= 3 (answer)
Answer:
Step-by-step explanation:
POQ AND KLJ
They are the only alternate exterior angles