graph the functions

Question

a) y=3x^2

b) y=(8/3)x^2

c) f(x)= -5x^2

Answer 1

The functions y = 3x^2

To find the coordinate points

Substitute x = 0,1,-1 in given function set of coordnate pair  would be 0,3,3.

We can able to write the points of function is (0,0),(1,3), (-1,3)

Graph of the function y = 3x^2

Draw the coordinate plane.

plot the above points.

Connect the points neatly like a curve.

The curve indicating required function graph.

Answer 2

b) Given function y = (8/3)x^2

To find coordinate pairs substitute x = 0,1,-1 respectively in given function then the set of coordinate pair would be

0,8/3,8/3.

We can able to write points are (0,0),(1,8/3),(-1,8/3)

Graph of the y = (8/3)x^2

Draw the coordinate plane.

Plot the above points.

Connect the plotted points neatly like a curve.

The curve indicating the required graph of the function.

Answer 3

c) Given function f(x) = -5x^2

To find coordinate pairs of the function substitute x = 0,1,-1 respectively in given function set of coordinate pair would be 0,-5,-5.

We can able to write the points are (0,0),(1,-5), (-1,-5)

Graph of the function y = -5x^2

Draw the coordinate plane.

Plot the above points.

Connect the plotted points neatly like a curve.

Formed curve indicating required graph of the function.