Q. A triangle has vertices on a coordinate grid at F(1,−1),G(1,3), and H(−8,−1). What is the length, in units, of FG ?Answer: □ units
Identify Coordinates: Identify the coordinates of points F and G. F(1,−1) and G(1,3).
Calculate Length: Recognize that the length of bar(FG) is the distance between points F and G. We will use the distance formula to calculate this length.
Apply Distance Formula: Apply the distance formula: d=(x2−x1)2+(y2−y1)2, where (x1,y1) and (x2,y2) are the coordinates of points F and G, respectively.
Substitute Coordinates: Substitute the coordinates of F and G into the distance formula.d=(1−1)2+(3−(−1))2
Simplify Expression: Simplify the expression inside the square root. d=(0)2+(4)2
Calculate Distance: Calculate the distance.d=0+16d=16d=4
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