Final answer:
To find the coordinates of point H on the line segment FG, we use the ratio 1:3. By calculating the differences in x and y coordinates between points F and G and multiplying them by the ratio, we can determine the coordinates of point H. The sum of the coordinates of H is -11.
Step-by-step explanation:
To find the coordinates of point H, we need to determine the point that divides the segment FG into a 1:3 ratio.
First, we calculate the difference in x-coordinates and the difference in y-coordinates between points F and G:
Δx = 4.5 - (-3.5) = 8
Δy = (-5) - (-11) = 6
Next, we find the coordinates of point H by multiplying both Δx and Δy by the ratio 1:3 and adding the results to the coordinates of point F:
x-coordinate of H = -3.5 + (1/4) * 8 = -1.5
y-coordinate of H = -11 + (1/4) * 6 = -9.5
The sum of the coordinates of point H is -1.5 + (-9.5) = -11.