The total cost (c) in dollars of renting a sailboat for n days is given by the equation c = 120+60n. If the total cost was $360, for how many days was the sailboat rented?
What is n= 4
200
Solve: 3(x+5) = 2x + 35
Step 1: 3x+15 = 2x+35
Step 2: 5x+15=35
Step 3: 5x=20
Step 4: x = 20
Which is the first incorrect step in the solution shown above?
What is Step 2
200
Which point lies on the line defined by 3x+6y =2
(0,2)
(0,6)
(1, -1/6)
(1, -1/3)
What is (1, -1/6)
200
What are the solutions for the quadratic equation
x^2 + 6x - 16 =0?
What is (x+8)(x-2) 0r -8, 2
200
Is the following relation a function?
{(-1,3), (-2,6), (0,0), (-2,-2)}
What is NO
200
A 120 foot long rope is cut into 3 pieces. The first piece of rope is twice as long as the second piece of rope. The third piece of rope is three times as long as the second piece. What is the length of the longest piece of rope?
What is 60 feet?
300
What is the solution to the inequality? x - 5>14
What is x>19
300
What is the equation of a line that has a slope of 4 and passes through the point (3, -2)?
What is y = 4x-14
300
For what values of x does y = 0 in the following equation:
y= x^2 - 3x - 4
What is -1 and 4
300
Some ordered pairs for a linear function of x are given in the table below:
X Y
1 1
3 7
5 13
7 19
Which of the following equations was used to generate the table above?
y = 2x+1, y = 2x - 1, y = 3x - 2, y = 4x - 3
What is y = 3x - 2
300
What is the multiplicative inverse of 1/2?
What is 2
400
Which number serves as a counterexample to the statement below?
All positive integers are divisible by 2 or 3.
100, 57, 30, or 25
What is 25
400
What is the solution to this system?
y= -2x -2
6x + 2y = -4
What is 0
400
How many times does the graph of y = 2x^2 - 2x +3 intersect the x-axis?
HINT: Use the discriminant
What is none
400
A circle is not a function because it fails the _______ line test.
What is vertical
400
What is the slope of a line that is parallel to the line:
y=1/3x+7
What is -3
500
What is the first property you would use to solve this equation?
2(x+3)=7
What is the distributive property
500
What is the solution to the following system?
x+ 3y = 7
x+ 2y = 10
What is (16,-3)
500
For the following equation: y = - x^2 + 3x +5, what is the y - intercept AND does this graph open upward or downward?