(2x+1)+(3x+8)
5x+9
2x+6=8-4
x=−1
What does the quadratic formula look like?
Find the maximum
1, 1, 5, 5, 6, 7, 8, 9
max =9
starting vaule is what?
3(1)x after 7 years
3
(7x+9)-(4x-1)
3x+10
3x+6=9-3
x=1
2x2+8x+5=0
x=−0.775255
x=−3.22474
What is the minimum
2, 3, 4, 4, 5, 5, 6, 7, 9
min =2
what is the change factor?
3(0.2)x after 7 years
7
(x2-2x+1)+(3x2-5x-2)
4x2-7x-1
5+4x+2=5-8+2
x=-2
4x2+6x+2=0
x=−0.5
x=-1
What is the mean of
7,2,5,6,3,7,4,8
5.5
what is the growth/decay?
3(0.7)x after 7 years
0.7
(x2+5x+9)-(3x2+4x+1)
-2x2+x+8
5+x+2=5+8+2
x=8
8x2-4x+2=0
no solution
What is the range
1, 1, 2, 5, 6, 7, 8, 9
R =8
What is
3(1.4)x after 7 years
Round to the second decimal place.
31.62
(8x2+4x+6)-(7x2+4x+3)-(9x+5x2+4)
-4x2-9x-1
9-5+x+2=5+8+2+3
x=12
2x2+8x-5
x=0.54951
x=−4.54951
what is the sum
1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 8, 9, 9
sum =171
there are 3 skyscrpers and it triples every 5 years how many will there be after 10 years?
27 skyscrapers