Find the solution to the system of equations by using either graphing or substitution.

y = 2x - 1 and y = x + 3

a. (4, 7)
b. (7, 4)
c. (-7, -4)
d. infinate solutions

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.