Quiz 2 - T2 - grade 9 - 2024 - 2025

Which way does the graph move if the equation looks like y = (x - 3)² ?

• Graph moves UP 3 units
• Graph moves to the RIGHT 3 units
• Graph moves DOWN 3 units
• Graph moves to the LEFT 3 units

What transformation occurred to y = x² to y = (x - 5)² - 3?

• The graph translated right 5 units and down 3 units
• The graph translated right 3 units and down 5 units
• The graph translated left 5 units and down 3 units
• The graph translated left 3 units and up 5 units

What happens to the parabola when you multiply its equation by a number bigger than 1?  Eg  y = 3x²

• Graph moves UP
• Graph gets WIDER
• Graph moves DOWN
• Graph gets NARROWER

• Opens down and is narrow

• Shifted down and is wider

• Shifted down and is Narrow

• Opens down and is wider

Which transformation transforms the graph of
f(x) = x² to the graph of
g(x) = (x + 4)²?

• a vertical translation 4 units up
• a vertical translation 4 units down
• a horizontal translation 4 units to the left
• a horizontal translation 4 units to the right

Solve the equation $𝒙^2+5𝒙+4>𝟎$  .

•  $\left(-\infty,-4\right)\cup\left(-1,\infty\right)$  

•  $\left(-\infty,1\right]\cup\left[4,\infty\right)$ 

•  $\left(-\infty,1\right)\cup\left(4,\infty\right)$  

•  $\left(-\infty,1\right]\cap\left[4,\infty\right)$  

Solve for the equation
 $a^2-3a+2\le0$  

•  $\left[1,2\right]$  

•  $\left(1,2\right)$  

•  $\left(-\infty,1\right)\cup\left(2,\infty\right)$  

•  $\left(-\infty,1\right)\cap\left(2,\propto\right)$  

 $x^2-4x+3\ge0$  

•  $x<1$  or  $x>3$  

•  $1\le x\le3$  

•  $-3\le x\le-1$  

•  $x\le1$  or  $x\ge3$  

Solve the quadratic inequality:

 $x^2-4x-5\le0$  

•  $-1\le x\le5$  

•  $-5\le x\le1$  

•  $x\ge5\ ,\ \ x\le-1$  

•  $x\le-5\ ,\ \ \ x\ge1$  

Plot the graph of the given quadratic inequality.

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