Question

3. The vertex of the graph of y = ax + b is at the ?, and the vertex of the graph of y = a + b is at the ?

Answer 1

3. The vertex of the function y=|ax+b| happens at y=0, where the function changes its direction.

Then, the value of x at that point is x=-b/a.

The vertex happens at (-b/a,0). This is the x-intercept

In the second function y=a|x|+b, the vertex happens when x=0 and y=b. This is the y-intercept.

Answer: Option B: x-intercept, y-intercept.