Answer:
Step-by-step explanation:
Given
Parabola has x-intercept has
and 
and Y-intercept as 
Now the general equation of parabola is

Substitute
in
we get

Now substitute
in equation 

Now substitute
in equation 

Solving
and
we get

therefore


(0,5)(3,-1)
slope = (-1 - 5) / (3 - 0) = -6/3 = -2
y = mx + b
slope(m) = -2
(use either of ur points...(0,5)...x = 0 and y = 5
now we sub and find b, the y int
5 = -2(0) + b
5 = b
so ur line is : y = -2x + 5
1/6 = 0.1666, the last number repeating to infinity, or a repeating decimal.
Hope helps!-Aparri
Answer:
You have to buy more than 20 books to make Cool Cover Bookstore club a better deal.
Step-by-step explanation:
Given that:
Fee charged by Fun Reads Bookstore = $40
Charges per book = $5
Let x be the number of books.
A(x) = 5x+40
Fee charged by Cool Covers Bookstore = $100
Charges per book = $2
B(x) = 2x+100
For making Cool Cover Bookstores club a better deal,
B(x) > A(x)
2x+100 > 5x+40
2x-5x > 40-100
-3x > -60
Dividing both sides by -3

Hence,
You have to buy more than 20 books to make Cool Cover Bookstore club a better deal.