Quiz Review

given the equation 8x + 4y= 15,

What is the first step in solving for y?

• Subtract 8x from both sides

• subtract 4y from both sides

• divide both sides by 4

• subtract 15 from both sides

• h=V/(3πr²)
• h=(3V)/(πr²)
• h=V/(3πr²)
• h=(3π)/(Vr²)

How many solutions?

• One Solution
• No solution
• Infinitely Many Solutions

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

The solution to this system of equations is:

• (4, 3)
• (3, 4)
• (-4, 3)
• No solution

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

What is the solution?
(Hint:  Both lines are graphed over each other)

• One Solution
• No solution
• Infinitely Many Solutions

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (2, 0)