Answer:
Step-by-step explanation:
a₁ = -1
a₂ = 3a₁ + 7 = 3(-1)+7 = 4
a₃ = 3a₂ + 7 = 3·4+7 = 19
Answer:
(b)
Step-by-step explanation:
Given

Required
The graph
First, make y the subject

Divide through by 3

Let x = 3

Let x = 6

So, we plot the graph through
and 
See attachment for graph
Answer:
Step-by-step explanation:
3n+15=75
three times a number is 3n. +15 is 15 more.
3n+15=75 subtract 15 from both sides to get the 3n alone
3n=60 divide by 3 to get the n by itself
n=20
It would be 66 degrees because
this would equal 180 degrees
add the angles together:30+57+27=114
now subtract 180-114=66degrees
FINAL ANSWER:66degrees
Ans: Option (1) <span>
Discontinuity at (1, 7), zero at ( negative four thirds , 0) </span>
Explanation:Given function:

Now if we plug in the x = 1, we would have discontinuity as function goes to infinity.
Now for f(1):