X= 2i(square root of 6), -2i(square root of 6)
A quadratic function is one of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero. The graph of a quadratic function is a curve called a parabola. ... A parabola intersects its axis of symmetry at a point called the vertex of the parabola. You know that two points determine a line.
2x - 3y = 6
-3y = 6 - 2x
y = -2 + 2/3x
Answer:
24 years
Step-by-step explanation:
let jiri's age be x
Pamela's age=x-15
x+x-15=33
2x-15=33
collect the like terms to similar places
2x=33+15
2x=48
x=24
4(5x-20)=-20
20x-80=-20
20x=60
x=3
