Number of Solutions
How many solutions does the equation have:
4x + 2 = 4x - 5
None
Solve the equation:
2x + 3 = 9
x = 3
Write an equation for the situation:
Cara has $25 in her bank account. She deposits $15 each week.
y=15x+25
What is the point where two lines intersect called?
Solution
True or False: if a point is on the line, it is not a solution
False
How many solutions does the equation have:
3(x + 2) = 3x + 6
Infinite/all
Solve the equation:
6x - 16 = 5x - 9
x = 7
Write an equation for the situation:
A car had driven 250 miles. It then drove at a constant rate of 60 miles an hour.
y = 60x + 250
What is another word for the rate of change?
Slope
What are the 3 possible amounts of solutions to an equation?
one
zero
all/infinite
How many solutions does the equation have:
2x + 8 = 4x + 15 - 2x
None
Solve the equation:
17x + 12 = 54 - 4x
x = 2
Write an equation for the situation:
Kiley has 15 pieces of candy. She adds 7 pieces every day and does not eat any.
y = 7x + 15
What is the starting point on the graph called?
y-intercept
Parentheses tell us to do what operation?
Multiplication
How many solutions does the equation have:
3x + 9 = 2(x - 3) + 5x
Solve the equation: 6x - 30 = 60 - 8x - 20
x = 5
Jordan spent 45 minutes on her phone. She then spends another 10 min per hour on her phone.
Alex spent 30 minutes on his phone. He then spends another 15 min per hour on his phone.
Write an equation to show when they are equal.
What is the term for a mathematical statement showing that two expressions are equal to each other?
Equation
Which of these should you not do when solving equations?
- Show your work
- Take your time
- Guess
Guess
8(x - 2) + 7 = 5x + 3x - 11
None
Solve the equation:
5(x + 1) = 2(x - 5) + 6
A famous person gains 2,000 followers per day. They already have 6,000,000 followers. Write an equation to find when they will have 8,000,000 followers.
2,000x + 6,000,000 = 8,000,000
What term refers to the letter(s) used in an expression or equation?
Variable
Name one of Miss Zylka or Miss Gregory's dogs
Stormy
Oakley
Ollie