(A) Graph y = 1.2 x − 4.2 in a rectangular coordinate system . (B) Find the x and y intercepts algebraically to one decimal place. (C) Graph y = 1.2 x − 4.2 in a graphing calculator. (D) Find the x and y intercepts to one decimal place using TRACE and the ZERO command.
(A) Graph y = 1.2 x − 4.2 in a rectangular coordinate system . (B) Find the x and y intercepts algebraically to one decimal place. (C) Graph y = 1.2 x − 4.2 in a graphing calculator. (D) Find the x and y intercepts to one decimal place using TRACE and the ZERO command.
(A) Graph
y
=
1.2
x
−
4.2
in a rectangular coordinate system.
(B) Find the
x
and
y
intercepts algebraically to one decimal place.
(C) Graph
y
=
1.2
x
−
4.2
in a graphing calculator.
(D) Find the
x
and
y
intercepts to one decimal place using TRACE and the ZERO command.
System that uses coordinates to uniquely determine the position of points. The most common coordinate system is the Cartesian system, where points are given by distance along a horizontal x-axis and vertical y-axis from the origin. A polar coordinate system locates a point by its direction relative to a reference direction and its distance from a given point. In three dimensions, it leads to cylindrical and spherical coordinates.
1. Show that the vector field
F(x, y, z)
=
(2x sin ye³)ix² cos yj + (3xe³ +5)k
satisfies the necessary conditions for a conservative vector field, and find a potential function for
F.
1. Newton's Law of Gravitation (an example of an inverse square law) states that the magnitude
of the gravitational force between two objects with masses m and M is
|F|
mMG
|r|2
where r is the distance between the objects, and G is the gravitational constant. Assume that the
object with mass M is located at the origin in R³. Then, the gravitational force field acting on
the object at the point r = (x, y, z) is given by
F(x, y, z) =
mMG
r3
r.
mMG
mMG
Show that the scalar vector field f(x, y, z) =
=
is a potential function for
r
√√x² + y² .
Fi.e. show that F = Vf.
Remark: f is the negative of the physical potential energy, because F = -V(-ƒ).
show your answer in
pen and paper
Don't use any Al tool
show ur answer in pe
n and paper then take
-2-i
Evaluate f² (3xy + iy²)dz
a) along the straight line joining from z = i to z = 2 - i
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b) along the parabola from x = 2t - 2 and y = 1+t-t²
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