Question

The cost of buying cameras is a linear function of the number of cameras bought. The cost of 2, 4, and 8 video cameras is shown in the table. Identify the equation in slope-intercept form that represents the function.

Answer 1

Using the information in the table, divide the cost by the number of cameras:

200 / 2 cameras = 100 per camera

400 / 4 = 100 per camera.

You would need to multiply the number of cameras bought by 100 to get the total cost.

The equation would be y = 100x