Top answers

Maths
All levels

Find the coordinates of the points where the lines y=x^2-5x+6 and y=x-4 intersect.

At the points of intersection the x and y coordinates will be the same. So we can solve the equations simultaneously to see what solutions to x and y solve both equations.Rearrange the second equation to ...

GC
Answered by Georgia C. Maths tutor
5137 Views

what does it mean if "b^2 - 4ac < 0" for a quadratic equation (eg y = a*x^2 + b*x + c)

The question comes from the quadratic equation r = (-b +- sqrt(b2 - 4ac)/2a where r is the root or x coordinate where the line crosses the x-axsis (the y coo...

NW
Answered by Nick W. Maths tutor
4576 Views

Solve, by method of substitution, the simultaneous equations: 5x+y=22 2x+y=10

Solve by substitution:5x + y = 22 (1)2x + y = 10 (2)
First let us label the equations 1 and 2. In order to solve this set of equations we need to rearrange one of the equations so that we have...

AW
Answered by Amy W. Maths tutor
4611 Views

Solve 8x+ 9 > 1 + 4x

8x + 9 > 1 + 4x . Bring all x values to the Left hand side by subtracting 4x from each side. 8x -4x +9 >1 = 4x +9 >1 Bring all numbers to the right hand side by ...

DE
Answered by Dominique E. Maths tutor
2958 Views

Determine whether the line with equation 2x+ 3y + 4 = 0 is parallel to the line through the points with coordinates (9, 4) and (3, 8).

Parallel means that the lines have the same gradient/slope. For example, the lines in an equal sign are parallel.Consider the standard equation of a line is: y = mx + c

DE
Answered by Dominique E. Maths tutor
5752 Views

We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences