Solve using elimination.
x + 2y = 13 and -x + y = 5
What is (1,6)?
100
Tell whether (2,-2) is a solution to the following inequalities.
y < x - 3 and y > -x + 1
What is not a solution?
100
Identify the correlation for this situation.
the temperature during the day and the number of people in the pool
What is positive correlation?
200
Graph:
x - y = 2 and x + y = -8
What is (-3,-5)?
200
Solve by substitution.
x - y = 3 and x + 2y = -6
What is (0,-3)?
200
Solve by elimination.
6x + y = -10 and 5x + y = -10
What is (0,-10)?
200
Graph the solution of
y > x - 4 and y < x + 2
What is see picture?
200
the range of a weak negative correlation
What is between 0 and -1?
300
Graph:
x - y = -4 and -3x + 3y = 2
What is no solution?
300
Solve by substitution.
-5x - y = 12 and 3x - 5y = 4
What is (-2,-2)?
300
Solve by elimination.
2x + y = -9 and 4x + 11y = 9
What is (-6,3)?
300
Graph:
y < or = to x + 4 and y > or equal to -2x
What is see answer?
300
Find the x and y intercepts.
5x - 2y = 10
What is x-intercept = 2 and y-intercept = -5?
400
Graph:
x + 3y = -1 and -2x - 6y = 2
What is infinitely many solutions?
400
Write a system of equations and solve by substitution.
A group of 12 students and 3 teachers pays $57 for admission. Another group of 14 students and 4 teachers pays $69. Find the cost of one student ticket.
What is $3.50?
400
Solve by elimination.
-16x + 2y = -2 and y = 8x - 1
What is infinitely many solutions?
400
Graph:
y < 2x + 4 and y > x -1
What is see answer sheet?
400
Find the slope of the line described by 12x - 15y = 60.
What is 4/5?
500
Write your own system of equations and solve by graphing.
A pet store sells angel fish for $6 each and clown fish for $4 each. If the pet store sold 8 fish for $36, how many of each type of fish did it sell?
What is 2 angel fish and 6 clown fish?
500
Solve by substitution:
4x + 2y = 12 and y = -2x + 8
What is no solution?
500
Write a system of equations and solve by elimination.
A sports equipment store is having a sale on soccer balls. A soccer coach purchases 10 soccer balls and 2 soccer ball bags for $155. Another soccer coach purchases 12 soccer balls and 3 soccer ball bags for $189. Find the cost of a soccer ball and the cost of a soccer ball bag.
What is soccer ball $14.50 and soccer ball bag $5?
500
Coach Jules bought more than five bats. Some were wood and some were composite. The wood bats cost $49 each and the composite bats cost $100 each. Coach Jules spent less than $400. Write the system of inequalities that could be used to represent this situation. Let w stand for wood bats and c stand for composite bats.
What is w + c > 5 and 49w + 100c < 400?
500
For the data shown below
and the line y = 0.2x + 5, find the sum
of the squares of the residuals.
x: 2,4,6,8
y: 6,3,7,5