Question

Find the equations of the tangents to the parabola y^2=4x at the points for which the focal radius is 10

Answer 1

@campbell_st

Answer 2

ok... so this is a 2 part question...

the parabola has a focus at the origin and is in the form

\[(y - k)^2 = 4a(x - h)\]

this is a parabola concave right

Answer 3

agree

Answer 4

so the focal length is 1 unit....

the focus is 1 unit to the right of the origin.

Answer 5

so I think you need to distance fromula to find the points on the curve where the length is 10 units