Write a linear function whose slope is -4 and y intercept is -5. explain what these values mean in the equation.
what equation would work for this?

In y = mx + b form, the slope is in the m position and the y int is in the b position.

y = mx + b
slope(m) = -4
y int (b) = -5
y = -4x - 5
or
f(x) = -4x - 5

Use pythagorean’s theorem and find the missing side lengths of the two smaller triangles and add them together
13^2 - 12^2 = 5
15^2 - 12^2 = 9
5+9 = 14
14 is the length of each side of the square
14^2 + 14^2 = 19.8
19.8 is the diagonal length of the inside if the square

The answer to your question is 1