Solving Equations
Solve: −20 = −4x − 6x
What is 2?
Mr. Mackar’s soccer team is having a car wash to raise money for new uniforms. C stands for how many cars are washed and I stands for how much money they raise.
Identify the dependent variable.
What is the money raised?
Identify the type of function:
y= 3x -2
What is the product of y(-6y2 + 2y - 4)?
What is -6y3 + 2y2 - 4y?
What is the y-intercept of the line described by the equation 3x - y = 6?
What is (0, -6)?
Solve: 12 = −4(−6x − 3)
What is 0?
Mr. Mackar’s soccer team is having a car wash to raise money for new uniforms. C stands for how many cars are washed and I stands for how much money they raise.
Identify the independent variable.
What is the number of cars washed?
Identify the type of function:
y=3x
What is exponential?
What is the factored form of x2 - 48 - 100?
What is (x +2)(x - 50)?
What is the x-intercept of the line described by the equation 3x - y = 6?
Solve: 8x − 2 = −9 + 7x
What is -7?
Tara uses her cell phone a lot and she gets charged $0.05 a minute. C stands for the total she pays and M stands for the number of minutes she uses the phone.
Identify the independent variable.
What is the number of minutes used?
Identify the type of function:
y = 3x2
What is quadratic?
What is the simplified form of (-x3 + 3x) + (2x2 - 1) - (-x2 + 7)?
What is -x3 + 3x2 +3x - 8?
What is the y-intercept of the line described by the equation 2x - 2y = 8?
What is (0, -4)?
Solve: −18 − 6k = 6(1 + 3k)
What is -1?
Tara uses her cell phone a lot and she gets charged $0.05 a minute. C stands for the total she pays and M stands for the number of minutes she uses the phone.
Identify the dependent variable.
What is the total cost she pays?
Identify the type of function:
y= |3x|
What is absolute value?
Factor x2 - 49
(x + 7) (x - 7)
What is the y-intercept of the line described by the equation 2x - 2y = 8?
What is (4,0)?
Solve: 5n + 34 = −2(1 − 7n)
What is 4?
Yvonne reads about 20 pages a night before she goes to bed. N stands for the number of nights she has read and P stands for the total number of pages.
Identify the dependent variable.
What is the number of nights she has to read?
Identify the type of function:
y=7x - 2
What is exponential?
Factor x2 -12 x + 35
(x - 5) (x - 7)
What is the y-intercept of the line described by the equation 2x +3 = y
What is (0, 3)?