Graph linear functions i just need a detailed explanation
Thank you for the opportunity to help you with your question!
- a line or linear function is always in the form of y =mx + c. In most cases when asked to graph such a function the value of m(slope) and C (x intercept) is usually known.
For the sake of this example our function will be y =2x +1
The first step is to determine the value of at least three points (x, y)
-to do this guess any three values of x and using the equation determine the corresponding values of Y.
My three points will be 0, 1 and 3
when x is 0
y = 2(0) +1 =1
when x is 1
y= 2(1) +1 = 3
when x is 3
y= 2(3) +1=7
x 0 1 3
y 1 3 7
my three points will thus be (0, 1) (1, 3) (3, 7)
On your Cartesian plane of x and y axis you can then plot the three points.
-Draw a line joining the three points.
-You will have graphed your linear equation
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