Both y=
Substitute for y
Substitute for x
Review
200
Is the point (-3,4) the solution?
y = -2x - 2
y = -x + 1
Yes
200
Is the point (-1,1) the solution?
y = 2x + 3
4x + 2y = -2
Yes
200
Is the point (9,2) the solution?
2x - 3y = 12
x = 7y + 5
No
200
What is the solution to this system of equations?
no solution
300
y = 3x - 6
y = -x + 2
(2,0)
300
-9x + 3y = -4
y = 3x - 4
no solution
300
x = -2y + 1
3x + 6y = 3
infinite solutions
300
If a system of equations has INFINITE SOLUTIONS and this is one equation, what would be the other equation?
y = 2x + 4
y = 2x + 4
400
y = 11/2 x - 3
y = 7/2 x + 3
(3,9)
400
3x + 5y = 41
4x - y = 1
(2,7)
400
x + 4y = -2
-3x - 7y = -9
(10, -3)
400
How many solutions does this system of equations have?
y + 2 = 5(x + 1)
2x - 10y = -30
one solution
500
JC has $200 and deposits $8 each week. Kyla has $420 and withdraws $12 each week.
When will they have the same balance?
11 weeks
500
At a school, there are 1374 students. The number of boys is 82 less than the number of girls. How many boys and girls are there at the school?
646 boys
728 girls
500
The sum of two numbers is 2. The difference of the same two numbers is 8. What are the two numbers?
5 and -3
500
The butterfly club is selling packages of almonds for $4 each and peanuts for $2 each. They sold a total of 187 packages and raised a total of $522. How many packages of each did they sell?
74 packs of almonds
113 packs of peanuts