Tuesday 1.12

Tuesday 1.12

Please work on your warm up

Matching a Graph to An Equation

y = mx + b

Poll

Just a few reminders about graphing in slope-intercept form. Make sure both the slope and the y-int match the equation!

• Oh yeah!

• I already knew that!

• That is brand new information!

• Huh?

Multiple Choice

Which equation represents this graph? (hint: which direction is the line facing?)

• $y=-x+2$

• $y=x+2$

Multiple Choice

Which equation represents this graph?  (hint: where is the y-int?)

• $y=\frac{1}{5}x+3$

• $y=-5x-3$

• $y=5x+3$

• $y=-3x+0.5$

Multiple Choice

Which equation represents this graph?  (hint: which direction is the line facing?)

• $y=\frac{3}{2}x+4$

• $y=-\frac{3}{2}x+4$

Multiple Choice

Which equation represents this graph?

• $y=-\frac{7}{3}x+4$

• $y=-4x+2$

• $y=\frac{3}{7}x+4$

• $y=-2x-4$

Multiple Choice

Write the equation of the line.

• $y=-\frac{2}{3}x+4$

• $y=\frac{2}{3}x+4$

• $y=\frac{3}{2}x+4$

• $y=-\frac{3}{2}x+4$

Multiple Choice

Which equation represents this graph?

• $y=-\frac{2}{5}x-2$

• $y=-4x-3$

• $y=\frac{5}{2}x-3$

• $y=-3x-4$

Graphs and Solutions

One Solution

No Solution (parallel)

Infinite Solutions (colinear)

Multiple Choice

How many solutions will this system have?

• One
• Two
• No Solution
• Infinity

Multiple Choice

If a system of linear equations has infinitely many solutions, what does this mean about the two lines? 

• Intersecting lines
• Identical lines
• Parallel lines

Multiple Choice

If a system of linear equations has one solution, what does this mean about the two lines? 

• Parallel lines
• Identical lines 
• Intersecting lines

Multiple Choice

Which is the graph of y= -x + 2?

• A
• B
• C
• D

Multiple Choice

Graph x = 2

• A
• B
• C
• D

Multiple Choice

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions

Multiple Choice

The solution to the system is

• (-2, -8)
• (-8, -2)
• (2, -8)
• No solution

Multiple Choice

The solution to this system is:

• No solution
• (0, 1)
• (0, -2)
• (4, 3)

Multiple Choice

What is the solution?

• (6, 3)
• (3, 6)
• (-6, 3)
• No solution

Multiple Choice

Where do these two lines meet?

• (2, -9)
• (-9, 2)
• No solultion
• (2, 9)

Multiple Choice

Graph y = -3

• A
• B
• C
• D

Multiple Choice

These two lines intersect at _____.

• (4, -2)
• (4, 2)
• (-2, 4) 
• No solution

Multiple Choice

Buzz graphed two lines in order to find the solution to a given system of equations.
What is the solution?

• (-1, 4)
• (1, -4)
• (-4, 1)
• (4, -1)

Multiple Choice

What is the solution to the system?

• (3, -1)
• (2, -6)
• No Solution 
• (6, -2)

Multiple Choice

If a system of linear equations has infinitely many solutions, what does this mean about the two lines? 

• Intersecting lines
• Same line
• Parallel lines

Multiple Choice

If a system of linear equations has one solution, what does this mean about the two lines? 

• Parallel lines
• the same line 
• Intersecting lines

Multiple Choice

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions

Multiple Choice

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. 

Multiple Choice

What is the solution to this system?

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

To Do

Finish Graphing In Class Assignment

Work on Work From Home

Work on Study Island Redo