A is the point (-1, 5). Let (x, y) be any point on the line y = 3x.

Question

Question

a Write an equation in terms of x for the distance between (x, y) and A(-1,5).

b Find the coordinates of the two points, B and C, on the line y = 3x which are a distance of √74 from (-1,5).

c Find the equation of the line l₁ that is perpendicular to y = 3x and goes through the point (-1,5).

d Find the coordinates of the point of intersection between l₁, and y = 3x.

e Find the area of triangle ABC.

Answer 1

Answer #1

> I think the roots of the quadratic equation should be 4 and -1.2

Victor Onyango Oketch Mon, Jan 3, 2022 9:01 PM

Answer 2

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