Answer:
y² + 10y + 6x + 58 = 0
Step-by-step explanation:
Focus of the parabola has been given as (-7, -5) and directrix as x = -4
Let a point on the parabola is (x, y).
By the definition of a parabola, "distance of a point on parabola is equidistant from focus and directrix".
Distance from focus of the given point =
Distance of the point from directrix =
Therefore, equation of the parabola will be,
x² + 14x + 49 + y² + 10y + 25 = x² + 8x + 16
y² + 14x + 10y + 74 = 8x + 16
y² + 10y + 6x + 58 = 0
+ discriminant => 2 real, unequal roots
0 discriminant => 2 real, equal roots
- discriminant => 2 imaginary or complex roots which are conjugates
Here the discriminant is -16. How many real number solutions does this equation have? Think before you make your choice!
Answer:
y > x/2
Step-by-step explanation:
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