Answer:5/2
Step-by-step explanation:
Hello,
y=x²-x-2=x²-2*1/2*x+1/4-2-1/4=(x-1/2)²-9/4
1. Vertex=(1/2,-9/4)
2. if x=0 then y=0²-0-2=-2
3.The roots:
x²-x-2=0
==>(x-1/2)²-9/4=0
==>(x-1/2-3/2)(x-1/2+3/2)=0
==>(x-2)(x+1)=0
x=2 or x=-1
4. axe of symmetry: x=1/2
Answer:
y = (4/3)x
Step-by-step explanation:
You have to find the y-intercept, b. Do this by substituting in the x and y values into the equation:
12 = (4/3)(9) + b
12 = 12 + b
b = 0
So, y = (4/3)x
Hope that helps! :D
Answer:
or decimal form 23.23790007...
Step-by-step explanation:
Rewrite 540 as * 15
Factor 36 out of 540 .
Rewrite 36 as .
Pull the terms out from under the radical.
$9890 + $8250 + $680 = $18,820 for one year
Since she is going for four years, we need to multiply that number by four.
$18820 * 4 = $75,280
Total: $75,280