Linear, Absolute Value, & Quadratic Functions Review

Write the slope-intercept form of the equation of the line passing through the points (6, 2) and (5, -8).

• y = 10x - 36

• y = -10x + 38

• y = -10x + 62

• y = 10x - 58

Graph y = 1/2 x + 1

• 
• 
• 
• 

• -3

• 3

• 1/3

• -1/3

Solve |5x + 1| = 19.

• -4

• 18/5

• both -4 and 18/5

• none of these

Graph f(x) = -3|x - 1| + 2.

• 
• 
• 
• 

Write the equation for the function shown on the graph.

• f(x) = |x - 1| + 2

• f(x) = |x + 1| - 2

• f(x) = |x - 2| - 1

• f(x) = |x + 2| - 1

What are the zeros of this function graphed?

• 1 and 2.25

• 1.5

• 0 and 3

• -1.2

Over what interval(s) is the graphed function > 0?

• (0, 3)

• no solution

Over what interval(s) is the graphed function < 0?

• (0, 3)

• no solution

Find the vertex of the function f(x) = x² - 4x - 12.

• (2, -16)

• (-16, 2)

• (-2, -4)

• (-4, -2)