9514 1404 393
Answer:
(1) -5 and -3
Step-by-step explanation:
Descarte's rule of signs tells you the lack of sign changes among the coefficients means there are <em>no positive real roots</em>. That eliminates all answer choices except the first one.
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If you want to go to the trouble, you can factor the equation:
y = (x +3)(x +5)
These factors are zero when x = -5 and x = -3.
Answer:
This means our slope is equal to .
Step-by-step explanation:
Your ordered pairs are:
(-4, -4) and (0, 2)
To solve for the slope, we must use slope formula.
Substitute:
Solve:
This means our slope is equal to .
Hope this helped. :)
<u>Given</u>:
The system of linear equations are and
We need to determine the solution to the system of equations using substitution method.
<u>Solution</u>:
The solution can be determined using the substitution method.
Let us substitute in the equation
Thus, we have;
Thus, the value of y is -17.
Substituting in the equation
, we get;
Thus, the value of x is -13.
Hence, the solution to the system of equations is (-13,-17)