f(x)=x²-9
when we put x =0, then
f(x) = 0² -9 = 0 -9 = -9 which is negative. So graph is NOT always positive.
Correct option is C
Analyze the key characteristics of the following quadratic function. f(x)=x2-9 Based on the graph, which statement...
16 For the quadratic function f(x) = -x2 - 8x, answer parts (a) through (c) (a) Graph the quadratic function by determining whether its graph opens up or down and by finding its vertex, axis of symmetry, y-intercept, and X-intercepts, if any. Does the graph off open up or down? 12 8- up Odown 2015 12 118 12 16 What are the coordinates of the vertex? The vertex of the parabola is (Type an ordered pair. Use integers or fractions...
+ 6/7 points Previous Answers ColAlg7 3.1.009. A quadratic function f is given. f(x) = x2 - 2x + 6 (a) Express fin standard form. f(x) = (x + 1)2 + 5 (b) Find the vertex and x- and y-intercepts of f. (If an answer does no vertex (x, y) = ( 1,5 x-intercept (x, y) = ( DNE y-intercept (x, y) = 0.6
13. The following quadratic function is written in general form: f(x)=x2-6x-7 a) Write the factored form b) Write the vertex form (also known as standard form). c) Find the y-intercept. Which of the three forms listed above is the most useful in identifying the y-intercept and why? d) Find the x-intercepts. Which of the three forms listed above is the most useful in identifying the x-intercepts and why? e) Find the vertex. Which of the three forms listed above is...
This uestion: 10 pts 5 of 10 (3 completo) For the quadratic function f(x)=x2- Bx, answer parts (a) through (c) (a) Graph the quadratic function by determining whether its graph opens up or down and by finding its vortex, as of symmetry. y-intercept, and x-intercopts, any Does the graph of open up or down? down up 2013 What are the coordinates of the vortex? The vertex of the parabola is (Type an ordered pair Use intogers of fractions for any...
Analyze the polynomial function f(x)=x2 + x2 - 20x. Complete parts (a) through (c). (a) Find the x- and y-intercepts of the graph of the function. The x-intercept(s) is/are - (Type an integer or a simplified fraction. Use a comma to separate answers as needed. Type each answer only once.) The y-intercept is - (Type an integer or a simplified fraction.) (b) Determine the real zeros of the function and their multiplicity. Use this information to determine whether the graph...
Given the quadratic function f(x) = -2(x – 2)2 + 8, please find the following: (a) The vertex of the graph (b) The y-intercept of the graph in ordered pair (x, y) format. (c) The x-intercept(s) of the graph in ordered pair (x, y) format. (d) The direction which the graph opens and why you think this is true. (e) The axis of symmetry of the graph. Please show your work
Sketch the graph of the quadratic function. Identify the vertex and axis of symmetry. 12) f(x) = (x - 3)2 + 6 03 Determine the coordinate of the vertex of the following quadratic function and indicate whether opens UP or DOWN. 13) f(x) = -x2 + 4x - 9
Determine the quadratic function f whose graph is given. 4- The vertex is (-2,-8) and the y-intercept is -4. 2- -6 -54-3 -2-12/1 2 4 0-4) -8- (-2-810 f(x)= (Simplify your answer.)
Determine the quadratic function whose graph is given. 16) +++++++++ ++++++ + Vertex: (-1,9) y-intercept: (0,8) A) f(x) = -x2 - 2x + 8 C)f(x) = -x2 - 2x - 8 B) f(x)=x2 - 4x + 8 D) f(x) = -x2 - 4x + 8
10 For the given equation and graph of the quadratic function, do each of the following. Complete parts (a) through (e). f(x) = -2(x - 5y2 + 2 a. Give the domain and range. The domain is (Type your answer in interval notation.) The range is (Type your answer in interval notation.) M h -10-8-82 2 -4 -6 -B 10 b. Give the coordinates of the vertex. The vertex is (Type an ordered pair.) c. Give the equation of the...