equation of the line graphed in the xy-plane

/in /by

If a > 0 and b > 0, which of the following could be an equation of the line graphed in the xy-plane above?

  • A.

    y = −ax − b

  • B.

    y = ax − b

  • C.

    y = ax + b

  • D.

    y = −ax + b

  • E.

    y = abx

Explain your answer.