Point , j located at (2,7) is rotated 90° counterclockwise about (-1,-3). What is the y- coordinate of 1'? А 9 B 0 C -11 D-9
1 answer:
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Answer:
slope =
Step-by-step explanation:
Slope formula:
Given points:
(1, 2) = (x1, y1)
(9, 6) = (x2, y2)
To find the slope of a line, input the values of two points into the slope formula:
Solve:
6 - 2 = 4
9 - 1 = 8
Simplify:
The slope is .