Illustrative Math - Algebra 1 - Unit 7 - Lesson 23 - Formative Library | Library

Here is a graph of a quadratic function f(x). What is the minimum value of f(x)?

…

The graph that represents f(x)=(x+1)^{2}-4 has its vertex at (-1,-4).
Explain how we can tell from the expression (x+1)^{2}-4 that -4 is the minimum value of f rather than the maximum value.

…

Match each equation to the number of solutions it has.

		1 solution
		2 solutions
		no soultions

…

Which equation has irrational solutions?

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This lesson is from Illustrative Mathematics. Algebra 1, Unit 7, Lesson 23. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/1/7/23/index.html ; accessed 26/July/2021.

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Illustrative Math - Algebra 1 - Unit 7 - Lesson 23

Here is a graph of a quadratic function f(x). What is the minimum value of f(x)?

The graph that represents f(x)=(x+1)^{2}-4 has its vertex at (-1,-4).Explain how we can tell from the expression (x+1)^{2}-4 that -4 is the minimum value of f rather than the maximum value.

Match each equation to the number of solutions it has.

Which equation has irrational solutions?

The graph that represents f(x)=(x+1)^{2}-4 has its vertex at (-1,-4).
Explain how we can tell from the expression (x+1)^{2}-4 that -4 is the minimum value of f rather than the maximum value.