11/5 Online HW

Describe the movements
y=|x−2|

• Left 2
• Right 2
• Up 2
• Down 2

Describe the movements.
y=|x+2|+2

• Left 2, Up 2
• Right 2, Up 2
• Left 2, Down 2
• Right 2, Down 2

Which function is graphed?

• f(x) = -3|-x - 1| + 4
• f(x) = -|x - 1| + 4
• f(x) = 5|x - 1| + 4
• f(x) = -3|x - 4| + 1

Solve. |x + 4| = 10

• 6

• -14

• 14

• -6

• no solution

What would be the next step to isolate the absolute value? $9\left|x+4\right|\le45$  

• Divide by 9

• Add 9

• Subtract 4

• Multiply by 9

Solve. |x + 3| = 10

• 7

• -13

• 13

• -7

• no solution

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Parallel Lines never intersect because...

• they have the same slopes. 
• they have the same y-intercept.
• they have different slopes.
• they have different y-intercepts. 

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. 

This system has _____ solutions

• 0
• 1
• 2
• Infinitely many