Algebra 2 CP. Solve Slope = m = 2 y-intercept = b = -9.

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Presentation transcript:

Algebra 2 CP

Solve

Slope = m = 2 y-intercept = b = -9

Find the equation of the line that is perpendicular to the line below and goes through the point (6,-4)

Determine both the x and the y intercepts of the line below.

X-intercept = 40 Y-intercept = 5

Solve the equation below

x = -2 or x = -12

Solve

If Then -4 4

True

Solve

No solution! Remember the absolute value can never equal a negative

State a reasonable correlation coefficient

Answers Vary Must be positive and near one. r values in between 0.8 and 0.9 are good answers

Solve and graph your solution

Another acceptable format: AND Graph: (open circle on -4 and -2 with a segment in between connecting them)

Solve

All Real Numbers

Is this equation a model of direct variation?

No The line does not go through the origin

y varies directly with x. When x = 10, y is equal to 65. Write the equation that models this relationship and determine what y will be when x = 17.

Does the table below represent direct variation? Justify your answer. x-212 Y

Yes. One justification: Y divided by x is always equal to a constant, -7. Another possible justification: Show that the slope is -7 and that the y-intercept is 0. Since the data forms a line through the origin, it is direct variation.

Solve the equation below

x = -4

Solve the equation below for I.

Another acceptable format:

Solve

Write the equation of the line that has a slope of 0 and contains the point (4, 9)

y = 9

Write the equation of the line in standard form that contains the point (9, -1) and is parallel to the line below.

Write the equation for the line shown in the graph below

Solve the absolute value inequality:

Solve the equation below for b

Solve the absolute value inequality below

No real solution. Absolute value can never be less than a negative number. Test Prep Tips: Focusing on completing practice problems rather than just looking over problems. You can retry problems from your notes and/or HW. For HW, focus on the ones that you initially got incorrect or got stuck on. Also, Chapter 1 review solutions can be found in the back of the book.