(x)=2x-x2 2 a=2, b = 1/2, C=0 b) Vertex v F(x)=ax 2 + bx + c x= Za V=2.0L YEF(- =) = 4 b (글) JANUARY 17, 2025 WORKSHEET 1 Solve the following four problems on a separate sheet. Fully justify your answers to MATH 122 ล T earn full credit. 1. Let f(x) = 2x- 1x2 2 (a) Rewrite this quadratic function in standard form: f(x) = ax² + bx + c and indicate the values of the coefficients: a, b and c. (b) Find the vertex V, focus F, focal width, directrix D, and the axis of symmetry for the graph of y = f(x). (c) Plot a graph of y = f(x) and indicate all quantities found in part (b) on your graph. (d) Specify the domain and range of the function f. OUR 2. Let g(x) = f(x) u(x) where f is the quadratic function from problem 1 and u is the unit step function: u(x) = { 0 1 if x ≥0 0 if x<0 y = u(x) 0 (a) Write a piecewise formula for the function g. (b) Sketch a graph of y = g(x). (c) Indicate the domain and range of the function g. X фирм where u is the unit step function defined in problem 2. 3. Let w(x) = 2. u(x) - 1 Write a piecewise formula for w and then sketch its graph. игри 4. Let h(x) = f(x) w(x) where f and w are the functions defined above. (a) Write a piecewise formula for the function h. (b) Sketch a graph of y = h(x). (c) Indicate its domain and range of the function h. (d) What is another name for the function a(x) = x. w(x)? 300 JA 2194
(x)=2x-x2 2 a=2, b = 1/2, C=0 b) Vertex v F(x)=ax 2 + bx + c x= Za V=2.0L YEF(- =) = 4 b (글) JANUARY 17, 2025 WORKSHEET 1 Solve the following four problems on a separate sheet. Fully justify your answers to MATH 122 ล T earn full credit. 1. Let f(x) = 2x- 1x2 2 (a) Rewrite this quadratic function in standard form: f(x) = ax² + bx + c and indicate the values of the coefficients: a, b and c. (b) Find the vertex V, focus F, focal width, directrix D, and the axis of symmetry for the graph of y = f(x). (c) Plot a graph of y = f(x) and indicate all quantities found in part (b) on your graph. (d) Specify the domain and range of the function f. OUR 2. Let g(x) = f(x) u(x) where f is the quadratic function from problem 1 and u is the unit step function: u(x) = { 0 1 if x ≥0 0 if x<0 y = u(x) 0 (a) Write a piecewise formula for the function g. (b) Sketch a graph of y = g(x). (c) Indicate the domain and range of the function g. X фирм where u is the unit step function defined in problem 2. 3. Let w(x) = 2. u(x) - 1 Write a piecewise formula for w and then sketch its graph. игри 4. Let h(x) = f(x) w(x) where f and w are the functions defined above. (a) Write a piecewise formula for the function h. (b) Sketch a graph of y = h(x). (c) Indicate its domain and range of the function h. (d) What is another name for the function a(x) = x. w(x)? 300 JA 2194
Chapter11: Conics
Section11.2: Parabolas
Problem 11.30TI: Graph x=y2+2y3 by using properties.
Related questions
Question
Question 1
Transcribed Image Text:(x)=2x-x2
2
a=2, b = 1/2, C=0
b) Vertex v
F(x)=ax 2 + bx + c
x=
Za
V=2.0L
YEF(- =) = 4
b
(글)
JANUARY 17, 2025
WORKSHEET 1
Solve the following four problems on a separate sheet. Fully justify your answers to
MATH 122
ล
T
earn full credit.
1. Let f(x) = 2x-
1x2
2
(a) Rewrite this quadratic function in standard form: f(x) = ax² + bx + c
and indicate the values of the coefficients: a, b and c.
(b) Find the vertex V, focus F, focal width, directrix D, and the axis of
symmetry for the graph of y = f(x).
(c) Plot a graph of y = f(x) and indicate all quantities found in part (b)
on your graph.
(d) Specify the domain and range of the function f.
OUR
2. Let g(x) = f(x) u(x) where f is the quadratic function from problem 1
and u is the unit step function:
u(x) = { 0
1 if x ≥0
0 if x<0
y = u(x)
0
(a) Write a piecewise formula for the function g.
(b) Sketch a graph of y = g(x).
(c) Indicate the domain and range of the function g.
X
фирм
where u is the unit step function defined in problem 2.
3. Let w(x) = 2. u(x) - 1
Write a piecewise formula for w and then sketch its graph.
игри
4. Let h(x) = f(x) w(x) where f and w are the functions defined above.
(a) Write a piecewise formula for the function h.
(b) Sketch a graph of y = h(x).
(c) Indicate its domain and range of the function h.
(d) What is another name for the function a(x) = x. w(x)?
300
JA
2194
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