Help me with this question

X is P and Y is C

Step-by-step explanation:

Since

y

is on the right side of the equation, switch the sides so it is on the left side of the equation.

−

0.5

y

2

+

9

y

−

25

=

x

y

Subtract

x

y

from both sides of the equation.

−

0.5

y

2

+

9

y

−

25

−

x

y

=

0

Use the quadratic formula to find the solutions.

−

b

±

√

b

2

−

4

(

a

c

)

2

a

Substitute the values

a

=

−

0.5

,

b

=

9

−

x

, and

c

=

−

25

into the quadratic formula and solve for

y

.

−

(

9

−

x

)

±

√

(

9

−

x

)

2

−

4

⋅

(

−

0.5

⋅

−

25

)

2

⋅

−

0.5

Simplify.