Question

For equation y = -4x, a) Complete the table of values b) Plot the points found in the above tablec) Graph the line represented by the given equation

Answer 1

We are given the function y= -4x and we want to find the value of y for some values of x.

We calculate

x=-2

`y=\text{ -4}\cdot(\text{ -}2)=\text{ 8}`

x= -1

`y=\text{ -4}\cdot(\text{ -1\rparen=4}`

x=0

`y=\text{ -4}\cdot0=0`

So we get the following table

x y

-2 8

-1 4

0 0

now, to plot this points, we draw a Cartesian plane. On the horizontal line (the x axis) we will locate the value of x and on the vertical line (the y axis) we locate the value of y. We plot each point and we get the following graph

so we join the points with a line to get the graph of the function. That is