A family built a house in a beach resort area. In 1990, the house was 430 ft from the water. With erosion, the house was 400 ft from the water in 2000. Assuming a linear relationship between the number of years x since 1990 and the distance y of the house from the water, write an equation for y as a function of x.

Question

A family built a house in a beach resort area.  In 1990, the house was 430 ft from the water.  With erosion, the house was 400 ft from the water in 2000.  Assuming a linear relationship between the number of years x since 1990 and the distance y of the house from the water, write an equation for y as a function of x.

anonymous · Answer

y=(400-430)/(2000-1990)x+ 430
Y=-3x+430

anonymous · Answer

thanks