Question

Use the line y=3x+6 to complete the problems.

a. Graph the equation in the standard viewing window.
b. Find the y-intercept of the line.
c. Use the trace feature to find the coordinates of 3 other points on the line. Round to the nearest hundredth.

Please help!! Thanks.

Answer 1

So the problem basically wants you to plug in the equation into a graphing calculator (if you don't have one you can use desmos.com/calculator).

On demos, there's not really a "standard view," but for future reference on a graphing calculator you would go to zoom>zoom standard.

To solve b, you can zoom in to see that the y-int is 6, or on a graphing calculator go to calc>value then use x=0 because the y intercept is where x is zero.

To solve c, using the tracing feature on a graphing calculator is simple (just press trace). Three other random points I found on the graph are:
(0.21, 6.63)
(.63, 7.91)
(1.06, 9.19)