Answer:
the vertex is (1,-1)
Step-by-step explanation:
y = −3x^2 + 6x − 4
the vertex is at
h= -b/2a where ax^2 +bx+c
h= -6/2(-3)
h= -6/-6
h=1
substitute this in to find the y value
y = -3(1)^2 +6(1)-4
y = -3+6-4
y = -1
the vertex is (1,-1)
2.25*x=10
Which x is the number of books purchased
Solve for x
X=10÷2.25
X=4.44
Hi
-2/5 + 4/5 = 2/5..................
