Tamera is making a poster about cities in her state. She does not want to include information about cities with an elevation greater than 350 feet below sea level. She retrieved the following information about five of the cities.
Atlantia: 400 feet below sea level
Tysonia: 200 feet above sea level
Maurian: 350 feet below sea level
Los Hanicca: 190 feet above sea level
San Bernadane: 350 feet above sea level
Which cities did she include on her poster?

step-by-step explanation:

the first 5 right here the next 5 i will upload as separate question

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

oof

step-by-step explanation: