What is the equation of the straight line passing through the points (2,3) and (3,5)?

There are three steps to solving these types of straight line problems. 1) Find the gradient (slope) of the line. 2) Find the point slope formula. 3) Solve for y.1) The gradient (m) of the line between any two points (x1, y1) and (x2, y2) is given by m = (y2-y1)/(x2-x1). It does not matter which order we label the points in. In this case, we have m = (5-3)/(3-1) = 2/1 = 2. The gradient of the line is 2.2) The point slope formula is given by y - y1 = m(x - x1). Using (2,3) as (x1, y1) and m = 2 from part 1), we have y - 3 = 2(x - 2)3) Expanding the brackets on the right-hand side gives y - 3 = 2x - 4. Adding 3 to both sides of the equation gives y = 2x - 1. Therefore, the equation of the straight line is given by y = 2x - 1.

Answered by Omar M. Maths tutor

4471 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve (x^2 - 4)/(2x+4)


We have 2 spinners: spinner A and spinner B. Spinner A can land on 2, 3, 5 or 7. Spinner B can land on 2, 3, 4, 5 or 6. Spin both. Win if one spinner lands on odd and the other lands on even. Play game twice, what is the probability of winning both games?


Kieran, Jermaine and Chris play football. Kieran has scored 8 more goals than Chris. Jermaine has scored 5 more goals than Kieran. Altogether they have scored 72 goals. How many goals did Jermaine score?


If a curve has equation y=(4/3)x^3-2x^2-24x+16, find dy/dx and find the coordinates of the turning points.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences