If a line t (f(x) = 2x +3) is perpendicular to a line n that passes through point (3,7), what is the equation of line n?

Firstly, we need to think of the equation of a line formula to figure out what information we have been given. y-y1 = m(x-x1) -> (x1, y1)This formula uses a point and a slope. We have been given a point on the line n already, (3, 7).We now must find the slope, m. The question says line t and n are perpendicular to each other, so the slopes must be negatively reciprocal (opposites). The slope of line t is:y = 2x+3 -> y = mx + cm = 2So the slope of n will be -1/2. Finally we fill this into the equation, so we get :y - 7 = -1/2(x - 3)2y + x = 10

NT
Answered by Naoise T. Maths tutor

2690 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Show that the lines y=3x+7 and 2y-6x=8 are parallel (not using a graphical method).


Robin and Emma both buy cupcakes for a bake sale. Between them, they purchase 125 cupcakes for the bake sale. Emma buys 50% more cupcakes then Robin and gets a 20% discount. The total cost of the 125 cupcakes was £137.5. What is the price of one cupcake?


How do you find the mean of a grouped frequency table?


How do you solve the equation '2x + 1 = 5'?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning