Question

draw the graph of the polynomial f(x) = -3x2 + 2x-1

Answer 1

Solution:

Given Quadratic equation is

$- 3 {x}^{2} + 2x - 1$
Let

$y = - 3 {x}^{2} + 2x - 1$
put different values of x,and find different values of y.

Case 1:

x=1

y= -3+2-1

y= -2

point(1,-2)

by this way find few points,and plot them in graph.

As the equation is Quadratic ,so graph is parabolic in nature.

Find the graph in attachment.