Question

What is the equation for a line that passes through the point (-1,8) and lies only quadrants I,II,and IV on a graph?

Answer 1

`y=-x^3+7`

Explanation:

`color(brown)("Note that the question does not state 'straight line'.")`

Using `y=-x^3+c`

Given points `(-1,8) => y=-x^3+c" "->" " 8=-(-1)^3+c`

`=>8-1=c =7`

Thus `y=-x^3+c" "->" "y=-x^3+7`