Algebra-1

To solve this problem, we need to understand the connection between the linear equation and its graph, and the role of k and b.
k represents the slope of the line.
If k > 0, the line slopes upward (positive slope).
If k < 0, the line slopes downward (negative slope).
b represents the y-intercept, which is the point where the line crosses the y-axis.
If b > 0, the line crosses the y-axis above the origin.
If b < 0, the line crosses the y-axis below the origin.

According to the graph, the line slopes upward, thus k ＞ 0.

Then, we need to figure out the relationship between k and the slope of the line which is perpendicular to y = kx + b

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