Question

1. Given f(x) = 2x-4
Sketch a graph of f
​

Answer 1

Given -

y = 2x - 4

It is a linear equation. It is a straight line curve.

We need two points to fix it.

At x = 0 ; y = 2(0) - 4

(0 , - 4) is one point

At y = 0; 2x - 4 = 0

x =

4

2

= 2

(2, 0) is another point

Plot these two points. Join them with the help of a straight line.

graph{2x - 4 [-9.21, 10.79, -6.28, 3.72]}