All Algebra II Resources
Example Questions
Example Question #8 : Transformations Of Linear Functions
Given the equation , which of the following lines are steeper?
None of these.
Considering that slope (m) is defined as rise over run, you can look that the fractional slopes and determine which are steeper or more flat. For example, is equivalent to up one and over 8 while is equivalent to up one and over 10. As you can see the slope of the second line "runs" horizontally more than does the first slope and is therefore flatter. Based on this fact one can conclude that the larger the the slope, the steeper the line. So select the largest slope and this is the steepest line. In our case it is because is steeper (larger) than (flatter and a smaller number).
Example Question #9 : Transformations Of Linear Functions
The equation is shifted eight units downward. Write the new equation.
Rewrite the equation in slope-intercept format, .
Subtract two on both sides.
If the equation shifts eight units down, this means that the y-intercept, , would also subtracted eight units.
The correct answer is:
Example Question #871 : Algebra Ii
Which of the following describes the transformation of the function from its parent function ?
Stretched vertically by a factor of 2 and translated 3 units to the left
Stretched vertically by a factor of 2 and translated 3 units down
Stretched vertically by a factor of 2 and translated 3 units up
Stretched vertically by a factor of 2 and translated 3 units to the right
Stretched vertically by a factor of 2 and translated 3 units to the right
The only differences among the answer choices is the translation. The translation of a function is determined by , which represents a horizontal translation h units to the right and k units up. In this case, h = 3 and k = 0, which indicates a translation 3 units to the right.
Example Question #11 : Transformations Of Linear Functions
If the line is shifted up two units, and left three units, what is the new equation?
Vertical shifts will change the y-intercept. Shifting the equation up two units will add two to the y-intercept.
The equation becomes:
Shifting the equation left three units means that the inner term will become .
Replace the term.
The equation becomes:
Simplify this equation by distribution.
The answer is:
Example Question #11 : Transformations Of Linear Functions
Suppose is shifted left two units. What is the new equation in slope-intercept form?
Rewrite the given standard form equation in slope-intercept format:
Subtract from both sides.
Divide by two on both sides.
Simplify both sides.
If this equation is shifted left two units, the will be replaced with .
Rewrite the equation and simplify.
The answer is:
Example Question #12 : Transformations Of Linear Functions
Shift left four units. Write the new equation.
Simplify the equation given by distributing the integer through the binomial and combine like-terms. This will put the equation in slope intercept form.
Since this equation is shifted left four units, replace with .
Simplify this equation.
The new equation after the shift is:
Example Question #11 : Transformations Of Linear Functions
If the line is shifted up four units, what is the new equation?
Rewrite the given equation, , in standard form to slope intercept form, .
Subtract from both sides.
Divide by two on both sides.
Simplify the equation.
The vertical shift by four units will shift the y-intercept up four units. Add four to the equation.
The answer is:
Example Question #64 : Linear Functions
Translate the function up two units. What is the y-intercept of the new equation?
The equation given is currently in standard form.
Rewrite the equation in slope-intercept form, .
Subtract on both sides of .
Divide by two on both sides.
Simplify the fractions and split the right fraction into two parts.
The equation in slope-intercept form is:
Apply the translation. If this line is shifted up two units, the y-intercept will be added two.
The answer is:
Example Question #65 : Linear Functions
Shift the line right three units. What is the new equation?
Rewrite the given equation in standard form to slope-intercept form, .
Add and subtract three on both sides.
Simplify both sides.
Since the line is shifted three units to the right, the term will become .
Replace this with the variable in the equation.
Simplify.
The answer is:
Example Question #14 : Transformations Of Linear Functions
Shift the line up one unit, and left two units. Write the new equation.
Shifting the line up one unit will result in adding one to the y-intercept.
When the line is shifted left two units, the variable must be replaced with the term.
Use the distributive property to expand this equation.
The new equation is:
The answer is:
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