The equation for QR is 5y = -4x + 41. Is QR tangent to Circle O at R?
R (4,5)
4X
No, because the slope of OR times the slope of QR
does not equal -1.
Yes, because the slope of OR times the slope of
QR equals 1.
Yes, because the slope of OR times the slope of
QR equals -1.
No, because the slope of OR times the slope of QR
does not equal 1.
Done)