y=x²-10x-7
a>0 so we will be looking for minimum
x=-b/2a=10/2=5
y=25-50-7=-32
Answer: (5;32)
y=-4x²-8x+1
а<0 so we will be looking for maximum
х=-b/2a=8/-8=-1
у=4+8+1=13
Maximum point (-1;13)
Answer:
Step-by-step explanation:
Putting value of y = 5
4(5)2 - 7(5) - 6
4(25) - 35 - 6
100 - 41
59
Answer: (-∞,∞)
Step-by-step explanation: The line extends forever in both directions meaning that the endpoints will be negative infinity and infinity.
Answer:
$195
Step-by-step explanation:
multiplying 6.50*3*10 = 195
Answer: Option A
or 
Step-by-step explanation:
Use the quadratic formula to find the zeros of the function.
For a function of the form
The quadratic formula is:
In this case the function is:
So
Then using the quadratic formula we have that:
Remember that 
or
