Write the equation of the line using the information given about its graph. Slope $-\frac{2}{5}, y$-intercept $(0,7)$

Step 1 ：Given the slope \(m = -\frac{2}{5}\) and the y-intercept \(b = 7\).

Step 2 ：The equation of a line in slope-intercept form is given by \(y = mx + b\).

Step 3 ：Substitute the given values into the equation to find the equation of the line.

Step 4 ：So, the equation of the line is \(y = -\frac{2}{5}x + 7\).

Step 5 ：Final Answer: The equation of the line is \(\boxed{y = -0.4x + 7}\).