- Using a table of values, plot the graph of the following function:
y = - 4 x2 + 5x + 2
The graph below is the correct plot.
- True
- False
- What is the equation of the axis of symmetry of the graph of:
y = 3x2 - 7x + 13
Review Graphing Quadratic Functions
Write you answer as a decimal to the nearest hundredth.
x = ____________ - Find the coordinates of the vertex of the following equation, and is the vertex a maximum or a minimum?
y = 4x2 + 8x - 13
Review Graphing Quadratic Functions- ( -1, -17) maximum
- ( 1, -1) minimum
- ( - 1, - 17) minimum
- ( 1, -1) maximum
- What is the equation of the axis of symmetry of a parabola if its x-intercepts are - 4, and 6?
x = __________ - Which equation corresponds to the following graph?
- Graph the following equation: m2 + 6m - 16 = 0
Which solution below is correct?- m = - 8, m = 2
- m = 4, m = - 4
- m = 8, m = - 2
- m = 8, m = 2
- Graph the following equation:
x2 - 12x = - 15
Select from below, the two best descriptions of roots of this equation. - The following is a graph of a function whose corresponding quadratic equation has no solutions.
- True
- False
- Solve the following equation by taking the square root of each side. Round your answer to the nearest tenth.
x2 - 4 x - 14 = 0
Which answer below is correct?- x = - 6.2, x = - 2.2
- x = 6.2, x = 2.2
- x = - 6.2, x = 2.2
- x = 6.2, x = - 2.2
- Solve the following equation by taking the square root of each side.
1/2x2 - 7/4x - 4 = 0- x = 5.05, x = - 1.5
- x = 9.75, x = 7.25
- x = - 5.05, x = 1.05
- x = - 7.25, x = - 9.75
- Which equation is equivalent to:
x2 - 7x = 16- ( x - 7/2)2 = 15/4
- ( x - 7/2)2 = 113/4
- ( x - 7/2)2 = 18/2
- ( x - 7/2)2 = 23/2
- Solve the following equation by the Quadratic Formula:
4x2 - 3x - 6 = 0
Check the two solutions below that are correct.
Review Solving Quadratic Equations - Solve the following equation by the Quadratic Formula:
3a2 - 7/4a = 3/2
Check the two solutions below that are correct. - Which expression represents the solutions to:
3y2 + 7y + 3 = 0
( Note: √13 means the square root of 13.)- ( - 7 ± √13 ) / 6
- ( 7 ± √13 ) / 6
- ( 7 ± √85 ) / 6
- ( - 7 ± √85 ) / 6
- Graph the following function and find the y intercept.
y = 4(3x -7)
y intercept = _____
Review Exponential Functions - Graph the function y = ( 3/10)x
When x = - 1.4, y is:- 4< y < 5
- 3< y < 2
- 5< y < 6
- 6< y < 7
- Compare the graphs of y = 5x and y = 2x.
Which graph is steeper?- y = 2x
- y = 5x
- neither
- If you invest $1,000 in a savings account that pays 5.25% interest compounded monthly, use a calculator to find out what the value of your account be after 18 years? Give your answer to the nearest whole dollar. Use the review below to find the equation for compound interest.
A = ________________
Review Exponential Functions - Your rich uncle leaves you $10,000 in his will. You place the money in a checking account that does not pay any interest. Each year you spend 14.5% of the money remaining in your checking account. How much will you have left in your checking account after 7 years? Use the review below to find the equation for exponential decay. Give your answer in whole dollars.
y = $ _____________
Review Exponential Functions - The following sequence is geometric:
- 1,472, - 368, - 92, - 23- True
- False
- What is the nth term of the following geometric sequence:
a1 = - 6, n = 4, r = 7
Use the review below to find the formula for the nth term of a geometric sequence.
a4 = ____________
Review Geometric Sequences - What is the negative geometric mean for the following geometric sequence:
- 6, _______, - 864
geometric mean = ____________
Use the review below to find the formula for the nth term of a geometric sequence.
Review Geometric Sequences - Which number is next in the geometric sequence:
50, 175, 612.5, 2,143.75, ___________- 6,431.125
- 6,429
- 7,800
- 7,503.125