What is the equation of the line that passes through the points (−2,1) and (4,5) in the Cartesian coordinate plane?

Question

01-03-2018
Mathematics

contestada

What is the equation of the line that passes through the points (−2,1) and (4,5) in the Cartesian coordinate plane?

Respuesta :

Otras preguntas

What is a simple machine? A. any object that makes work easier when a single force is applied by changing the strength or the direction of that force B. any co

when writing a letter what is a desired action

which set of integers is included in (-1,3]?

How did new weapons and technology change the course of war during World War I?

Create a graph of the combined function h(x) = f(x)/ g(x) in which f(x) = x - 6 and g(x) = x + 6. On your graph, show the graphs of f(x) and g(x) also.

Which statement about the following reaction is correct? CaO (s) + H2O (l) ----> Ca(OH) 2 (s) deltaH = -65.2 kJ 65.2 kJ of heat is absorbed for every one o

Complete each function table. Then write the rule

Simplify. |–10 – 3| =

What is the formula to work out the area of a parallelogram?

galinasem2 galinasem2 · Answer 1 · 2018-03-01T18:07:27+01:00

galinasem2 galinasem2

01-03-2018

The straight line is given by the equation
y=kx+b
We substitute coordinates of points
1=-2k+b (1)
5=4k+b (2)
We give a system of equations
Solution of this system:
(1) b=1+2k
(2) 5=4k+1+2k
6k=4
k=2/3
b=1+4/3=7/3
y=2/3x+7/3

Answer Link