Answer:
Positive
Step-by-step explanation:
Since there are two x-intercepts, -2 and 2, there is a positive discriminant. If the parabola was below the x axis and opened downwards, the discriminant would be negative.
Answer:
Step-by-step explanation:
The odd numbers.
Suppose you have 31 and 27 when you add these two together, you get 58 which is not an odd number.
If you need a more mathematical proof, you could do it this way.
2x+1
2x is even. Anything multiplied by 2 is even. When you add 1 you get an odd number
So continue on
2y + 1 is the other number.
2x + 1 + 2y + 1 = 2(x + y) + 2
2 (x + y ) is even. When you add 2 to it, nothing changes. The result is still even.
Answer:
Step-by-step explanation:
Let the equation of line is 
, where 
is the slope of the line.
It passes through 
.
(<em>Slope of the line</em> joining 
)
Hence slope of the given line
Equation of line is: 
The line passes through 
Check if 
is on the line
Hence line passes through 
.
Check if 
is on the line
Hence line passes through .
"A" is the correct answer
