Identify an equation in point slope form for the line perpendicular to y=1,4x-7 that passes thought (-2,-6)
a. y+6=-4(x+2)
b. y-6=1,4(x-2)
c. y=2=-4(x=6)
d. y+6=-1,4(x+2)

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Select the graph of the solution. click until the correct graph appears. |x| = 3

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.