How high is a tree that casts a 24-ft shadow at the same time that a 6-ft fence post casts a 6-ft shadow?
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The point-slope form:
We have the point (-3, -1) and the slope m = 3/5. Substitute:
Answer:
point-slope form: y + 1 = 3/5(x + 3)
slope-intercept form: y = 3/5x + 4/5
standard form: 3x - 5y = -4