Question

graph the equation The given equation isy = - 1.6x + 3Find x when y = 4If you have a graphing calculator, you may use it.

Answer 1

The given equation is expressed as

y = - 1.6x + 3

We would substitute y = 4 into the equation and solve for x

It becomes

4 = - 1.6x + 3

- 1.6x = 4 - 3 = 1

- 1.6x = 1

x = 1/-1.6 =0.625

Assume another value for y is 3, the corresponding value for y would be

3 = - 1.6x + 3

3 - 3 = - 1.6x

1.6x = 0

x = 0