**QUADRATIC FUNCTIONS – SCRATCH**

**1.** Edit the code at mit.edu/projects/171546004/#editor (shown at right) to plot the quadratic function **y = ax ^{2}**. Sample output shown below.

**2.** Write to explain the effect of changing the value of a in **y = ax ^{2}**. Sketch and label illustrative graphs, and refer to them in your explanation.

**3.** Edit your code to plot **y = ax ^{2} + k**. Sample output shown below.

**4. **Write to explain the effect of changing the value of **k** in **y = ax ^{2} + k**. Sketch and label illustrative graphs, and refer to them in your explanation.

**5.** Edit your code to plot **y = a(x – h) ^{2} + k**. Sample output shown below.

**6.** Write to explain the effect of changing the value of **h** in **y = a(x – h) ^{2} + k**. Sketch and label illustrative graphs, and refer to them in your explanation.