The equation y = 8x + 12, where x is the number of hours and y is the total cost, represents what the surf instructor charges for lessons. Use this information to describe how to draw the line on a graph.
Answers
Graph
Step-by-step explanation:
Given: The equation y = 8x + 12, where x is the number of hours and y is the total cost, represents what the surf instructor charges for lessons.
Find: How to draw the line on a graph.
Solution:
Give linear equation is y = 8x + 12. So when we plot this information on a graph, it will be a straight line.
Let's try to find out the co-ordinates on this line.
When x = 0, y = 12. The line will cut the Y-axis at (0,12)
When x = 1, y = 20.
When x = 2, y = 38.
When x = -1, y = 4.
When x = -2, y = -4.
Plot the co-ordinates (0,12), (1,20), (2, 38), (-1, 4) and (-2,-4) on a graph. The line joining these co-ordinates will be a straight line that cuts the Y axis at (0,12).
This line represents what the surf instructor charges for lessons.
Answer:
Its easy.
Step-by-step explanation:
Plot a number of hours against total cost graph.
(1) by y=mx+c
The line with slope of 8 and y-intercept is 12.
The other way to plot a graph is put some integer into x to find out y, vice versa.For example when y=12,
x is equal to 0.
when y= 20,
x is equal to 1.
You can find out 3 point and join the line.
Finally the graph is finished.
Hope this helps you!!