Solve the following systems of equations below 1.y=x+7, y=-1/2x+4
2.y=-1/5x-3,y=x+3
3. y=-1/2x+3,3x-2y=10
4. y=-x+5,2x-y=7
Determine if the following has no solutions, infinitely many solutions, or exactly one solution below.
1.6x+y=-5,30x+5y=-20
2. x+y=5, -5x-4y=-18
3. x+y=3, -x-y=-3

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

if farmer matt works for 8 hours a day, how many days will it take him to completely plant 12 rows of crops? each batch of cookies needs 3/4 cups of sugar.

step-by-step explanation:

x coordinate is none

step-by-step explanation: