Envision Algebra

Solve the equation (hint: use the quadratic formula):

3x² - 2x - 6

• 2.2 or -1.8

• 1.8 or -1.1

• 1.2 or -2.2

• 2.8 or -2.8

How long is side x?

• 14.1

• 13.8

• 15.2

• 14.7

Solve the system using any method.

y = -2x - 1

y = x + 5

• (-2, 3)

• (2, 3)

• (-2, -3)

• (2, -3)

How does the graph of f(x) = |x| compare with the graph of g(x) = -3|x|? Choose all that apply.

• The graph of g is a vertical stretch of the graph of f

• The graph of g is a vertical compression of the graph of f

• The graph of g is a reflection over the x-axis of the graph of f

• The graph of g is translated up 3 units on the y-axis

Answer explanation

The minus sign flips it and the 3 stretches it flatter.

The Vertex of the graph of f(x) = 0.5|x-2| is .....

• (0,2)

• (2,0)

• (0.5, 0)

• (0, 0.5)

Answer explanation

(2b) The Vertex of the graph of f(x) = 0.5|x-2|

• Opens upward

• Opens downward

• Opens to the left side

• Opens to the right side

Answer explanation

(17) Which function is shown in the graph?

• 
• 
• 

Answer explanation

It isn't an absolute value function since there is no axis of symetry.

For this function, what is the average rate of change over the interval 1 e x e3

• -2

• 1

• -1

• 0

Answer explanation

(10b) Jay rides his motorcycle to his friends house and back home. This equation is represented by . Over what interval is the distance from Jay's house to his friend's house decreasing?

Answer explanation