Which best describes the function below?
y=2−3x
To determine the characteristic of the function y=2−3x, we will evaluate the slope:
- The given function is in the form y=mx+b, which indicates a linear equation. Here, y=2−3x can be rearranged as y=−3x+2, showing that m=−3.
- The slope m is −3.
- In a linear function, the sign of the slope m determines the function's behavior:
- If the slope m is positive (m>0), the function is increasing.
- If the slope m is negative (m<0), the function is decreasing.
- If the slope m=0, the function is constant.
- Since m=−3, which is negative, we conclude that the function is decreasing.
Therefore, the function described by y=2−3x is decreasing.
The function is decreasing.