What form is this equation in?
y=3x+1
slope-intercept form
Is this standard form?
3x+y=7
Yes
Solve the system by graphing.
y= -2x -3
y= 2x +5
(-2, 1)
Solve the system algebraically.
y=x-3
y= 2x
(-3, -6)
A total of 75 cookies and cakes were donated for a bake sale to raise money for the football team. There were four times as many cookies donated as cakes.
Write a system of equations to represent this situation.
x = # of cakes, y = # of cookies
y=4x
x+y=75
What form is this equation in?
3x+2y=10
Standard form
Find the x-intercept of the line from the equation. Write your answer as an ordered pair.
3x+4y=12
x-int: (4,0)
Solve the system by graphing.
y= x -1
y= 2x -2
(1, 0)
Solve the system algebraically.
y=x+4
y=2
(-2, 2)
A total of 75 cookies and cakes were donated for a bake sale to raise money for the football team. There were four times as many cookies donated as cakes. When x = # of cakes and y = # of cookies, the situation can be represented with the equations
y=4x
x+y=75
How many cakes and cookies were donated?
(15, 60); 15 cakes and 60 cookies
What form is this equation in?
y=mx+b
Slope-Intercept Form
Find the y-intercept of the line from the equation. Write your answer as an ordered pair.
2x+5y=-20
y-int: (0,-4)
Solve the system by graphing.
y=4x
y -x=3
(1, 4)
Solve the system algebraically.
y=x -6
y=3x
(-3, -9)
Together Preston and Jason have 49 video games. James has 11 more games than Preston. How many games does each person have?
Preston has 19 games and James has 30
What form is this equation in?
2x-y=0
Standard Form
Find the y-intercept of the line from the equation. Write your answer as an ordered pair.
4x-6y=30
y-int: (0,-5)
Solve the system by graphing.
y=x+3
2x+y=-3
(-2,1)
y= 3x +8
8x+4y=12
(-1, 5)
The cost of 8 muffins and 2 quarts of milf is $18. The cost of 3 muffins and 1 quart of milk is $7.50. How much does it cost for 1 muffin and 1 quart of milk cost (individually)?
1 muffin=$1.50
1 quart of milk = $3
y=2x
Slope-intercept Form
Graph the line from the equation using intercepts.
4x-8y=-16
x-int: (-4,0) y-int: (0,2)
Solve the system by graphing.
-x+y=0
-2x+y= -4
(4, 4)
Solve the system algebraically
2x+5y=44
y= 6x -4
(2, 8)
Elaine bought a total of 15 shirts and pairs of pants. She bought 7 more shirts than pants. How many of each did she buy?