Answer:
Step-by-step explanation:
The given equation is: 
,
Now, putting x=2 in above equation,
Now, put y=3 in the given equation,
Putting x=6,
Putting x=0,
Putting x=3,
Putting y=0,
Putting y=8,
Answer:Start studying office equipment module. Learn vocabulary, terms ... Terms in this set (37). Which of these statements is true about preventative maintenance? ... Use the Help function to guide her through the problem. Which tool should Tracy, ..
Step-by-step explanation:
X<<span>y+<span>3 its simple here is your answer</span></span>
A. 1.42152403
B. Repeating
C. 76/100
Answer:
a = 6 and b = -1.
Step-by-step explanation:
To find the maximum value of y = -x²+ ax + b we differentiate it with respect to x to find the value of x at which it is maximum.
So dy/dx = d(-x²+ ax + b)/dx = -2x + a
we equate it to zero.
-2x + a = 0
-2x = -a
a = 2x
Now, given that x = 3 at the maximum value,
a = 2x = 2(3) = 6
Also, substituting y = 8 and x = 3 into y, we have
y = -x²+ ax + b
8 = -(3)²+ a(3) + b
8 = -9 + 3a + b
3a + b = 8 + 9
3a + b = 17
So, b = 17 - 3a
substituting a = 6, we have
b = 17 - 3(6)
b = 17 - 18
b = -1
So, a = 6 and b = -1.
