The product of two numbers is negative which statement is true select two answers
1 answer:
Answer:
The product of two numbers is negative. Which statement is true? Select TWO answers.
A. The quotient of the two numbers is positive.
B. The quotient of the two numbers is negative.
C. No conclusion can be drawn about the quotient.
D. The signs of both numbers are negative.
E. The sign of one number is positive and the sign of the other is negative.
Step-by-step explanation:
The correct two options are B (the quotient of the two number is negative) and E (the sign of one number is positive and the sign of the other is negative).
To validate Option B; quotient is the result we get when we divide two numbers. For instance:
To validate Option E; multiplying two number of opposite sign will give us negative sign. For instance:
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Answer:
y=-1/2 x^2+3/2 x+9
Step-by-step explanation:
The equation of parabola is:
y=ax^2+bx+c
We know that parabola has three poibts
(6,0),(-3,0) and (1,10).
So we put these three points in equation:
a*36+b*6+c=0......(1)
a*9-3b+c=0........(2)
a+b+c=10........(3)
(1)-(2) we have:
27a+9b=0.....(4)
(2)-(3) we have:
8a-4b=-10.....(5)
4(4)+9(5) we got:
180a=-90
a=-1/2
From (4) we got: b=27/18=3/2
From (3) we got: c=10+1/2-3/2=9
So equation is:
y=-1/2 x^2+3/2 x+9
You can see the picture of parabola through three points.
