Unit Review Day 2

​Unit Review

Day 2

Multiple Choice

Suppose y varies directly as x, and y = 21 when x = 3. Find x when y = 42.

• 5

• 6

• 294

• 284

Open Ended

Write an equation for a line that passes through the following points: (-4,4) and (6,9) in point slope form.

Multiple Choice

A student graphed f(x)=x and g(x)=3f(x) on the same coordinate grid. Which statement describes how the graphs of f and g are related?

• The graph of f is shifted 3 units left to create the graph of g.

• The graph of f is less steep than the graph of g.

• The graph of f is shifted 3 units right to create the graph of g.

• The graph of f is steeper than the graph of g.

Multiple Choice

What is the equation of the line that passes through the point (-2,7) and has a slope of zero?

• x=7

• y=2

• x=-2

• y=7

Multiple Choice

What is the equation in slope-intercept form of the line that crosses (36,0) and is perpendicular to the line y= - $$\frac{4}{9}$$  x + 5

• y= $$\frac{4}{9}$$  x + 16

• y= $$\frac{4}{9}$$  x - 16

• y= $$\frac{9}{4}$$  x + 81

• y= $$\frac{9}{4}$$  x - 81

Multiple Choice

The graph of part of a linear function is shown on the grid. Which best describes the range?

• 0 < x < 10

• 0 < y < 10

• [-10,-6)

• [0,10)

Multiple Choice

Write the inequality from the graph below.

• y < - $$\frac{2}{3}$$ x + 9 

• y > - $$\frac{2}{3}$$ x + 9 

• y $$\le$$   - $$\frac{2}{3}$$ x + 9 

• y $$\ge$$   - $$\frac{2}{3}$$ x + 9 

Multiple Choice

Which of the following is a solution to the graph?

• (0,4)

• (6,2)

• (-5,1)

• (-4,3)

Open Ended

The graph of a system of equations is shown . 

Which best describes the solution of the system?

Multiple Choice

What is the value of 𝑥 in the solution to this system of equations?

y + 3x= -1

y= -14x + 10

• 1

• 3

• 9

• -4