Algebra=Plotting points graph?

Question

Can anyone explain this to me? How do I plot these? Thanks!


Plot the graphs of the following functions.
f(x)=6x
f(x)=3x - 2
f(x)=(1/2)x
f(x)= log2x

Answer 1

f(x) = 6x
f(0) = 0
f(1) = 6
f(-1) = -6

Now, connect the dots, and draw the straight line.

f(x) = 3x - 2
f(0) = -2
f(1) = 1
f(2) = 4

Now, connect the dots, and draw the straight line.

f(x) = x/2
f(0) = 0
f(2) = 1
f(4) = 2

Now, connect the dots, and draw the straight line.

f(x) = log(2x)
f(1) = 0.30102999566398119521373889472449
f(2) = 0.60205999132796239042747778944899
f(3) = 0.77815125038364363250876679797961
f(4) = 0.90308998699194358564121668417348
f(5) = 1

Now, connect the dots, and draw the curve.

Answer 2

Just set up a table of values and plot coordinates
example f(x)=6x f(-2) x=-2 y= -12
f(-1) x= -1 y= -6
f (0) x=0 y= 0
f(1) x=1 y=6

so you connect the dots and you have a graph of a line.

Answer 3

find points belong to function.
For the first 3 functions you will draw lines.
Two points will be enough.