Quadratic functions

Front

What is vertex form?

Back

Front

Which variable from vertex form shifts parabola horizontally? Options: a, h, k, -h

Back

h

Answer explanation

The word "horizontal" starts with the letter 'H.'

So the variable h shifts the parabola horizontally. which means left or right.

Front

Which direction and how many units does this function shift? f(x) = 2(x+4)^2

Back

shifts 4 units to the left

Answer explanation

remember that the h changes signs.

Front

In this function f(x)= 3(x-4)²+7, it shifts horizontally [blank] units to the [blank]

Back

4, right

Answer explanation

Remember there is a special rule when it comes to the variable h. you have to change the sign.

Front

What does the variable 'a' do in vertex form?

Back

stretches/compresses/ flips

Front

Which parabola shows that it has been shifted 1 unit to the right and 3 units up?

Back

Front

How to find the variable 'a' in the parabola y=a(x-1)²+2?

Back

Use the other point on the graph and substitute for x and y.