The point-slope form is:

Here you are given m = 0.8
Just plug in the given point (x,y)
For a specific answer please provide the labeled point in your question.
This is the standard form equation 
What is the ellipse?
The equation for an ellipse is typically written as x² a² + y² b² = 1. x² a² + y² b² = 1. An ellipse with its origin at the center is defined by this equation. The ellipse is stretched further in both the horizontal and vertical directions if a > b, a > b, and if b > a, b > a, respectively.
The standard form of the equation of an ellipse with center (h, k)and major axis parallel to the x-axis is:

where,
a > b
the length of the major axis is 2a
the coordinates of the vertices are (h±a,k)
the length of the minor axis is 2b
the coordinates of the co-vertices are (h,k±b)
the coordinates of the foci are (h±c,k),
where c² = a² − b².
so,

Hence, this is the standard form equation
.
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Assuming that is it a family of four. They each would have a meal costing $10.50
Answer:
x=6 y=11.7
Step-by-step explanation:
tan 31 = x/10
10 tan 31 = x
cos 31 = 10/y
y cos 31 = 10
y = 10/cos 31
The rules of exponents tell you to add exponents in the numerator and subtract those in the denominator. A power of a power causes the exponent to be multiplied.