Illustrative Math - Algebra 1 - Unit 6 - Lesson 11 - Formative Library | Library

Select all true statements about the graph that represents y=2x(x-11).

The x-coordinate of its vertex is -4.5.

The x-coordinate of its vertex is 11.

Its x-intercepts are at (-2,0) and (11,0).

Its x-intercepts are at (0,0) and (11,0).

The x-coordinate of its vertex is 4.5.

Its x-intercepts are at (2,0) and (-11,0).

The x-coordinate of its vertex is 5.5.

It has only one x-intercept.

F.IF.7.a

Select all equations whose graphs have a vertex with x-coordinate 2.

F.IF.7.a

Determine the x-intercepts and the x-coordinate of the vertex of the graph that represents each equation.

F.IF.7.a

Which one is the graph of the equation y=(x-3)(x+5)?

Graph A.

Graph B.

Graph C.

Graph D.

F.IF.7.a

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.

A company sells calculators. If the price of the calculator in dollars is p, the company estimates that it will sell 10,000 - 120p calculators.

Write an expression that represents the revenue in dollars from selling calculators if a calculator is priced at p dollars.

F.IF.7.a

10.

Is (s+t)^{2} equivalent to s^{2}+2st+t^{2}? Explain or show your reasoning.

F.IF.7.a

11.

Tyler is shopping for a truck. He found two trucks that he likes. One truck sells for $7,200. A slightly older truck sells for 15% less. 

How much does the older truck cost?

F.IF.7.a

12.

Here are graphs of two exponential functions, f and g.

The function f is given by f(x)=100*2^{x} while g is given by g(x)=a*b^{x}.
Based on the graphs of the functions, what can you conclude about a and b?

F.IF.7.a

13.

Suppose G takes a student’s grade and gives a student’s name as the output. Explain why G is not a function.

F.IF.7.a

This lesson is from Illustrative Mathematics. Algebra 1, Unit 6, Lesson 11. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/1/6/11/index.html ; accessed 26/July/2021.

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