Solve the system using the substitution method 4x+6y=8 3x+y=9
1 answer:
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ANSWER
a=-2, b=3
EXPLANATION
The given equation is
Recall that:
We simplify the left hand side to get:
For this equation to be true, we must have:
-6a=12 and 2+b=5
This implies that,
a=-2 and b=3
Answer:
Use the distance formula and the features with the definition of parabola unless you know the derived equation.
Directrix is the line on the other side of the focus from vertex. Directrix is x=8, for the general point (8,y). Parabola is the general point (x,y).
Distance from parabola to focus equals distance from parabola to directrix.
y2=-32X
x=1/x=y2
