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# Tag: practice-alg-1

### Algebra 1 PARCC question: rational-irrational

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When multiplying rational and irrational numbers, what do you get as a product? Well, it's not such a straightforward answer.

### Algebra 1 PARCC question: factor to solve

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You should be able to factoring a quadratic expression by the time you finish algebra 1. Drop-down menus limit your options on the test.

### Algebra 1 PARCC question: table rate of change

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The average rate of change can be calculated for a linear relationship between 2 quantities using a table of values.

### Algebra 1 PARCC question: graph of function

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The graph of a quadratic function is continuous; the domain is all real numbers, except in a few very special circumstances.

### Algebra 1 PARCC question: rewrite formula

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The PARCC test in algebra 1 will require you to be able to rewrite formulas by algebraically rearranging them to solve for the variable of interest.

### Algebra 1 PARCC question: rate of change

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In word problems, we compute the rate of change, the cost per pound, the number of cats we just have to buy, and lots of other quantities.

### Algebra 1 PARCC question: multiply binomials

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You can use the FOIL method to multiply 2 binomials. It works for certain cases, but learning how to apply the distributive property is better.

### Algebra 1 PARCC question: graph y=mx+b

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It's possible to estimate the solution to a system of linear equations by graphing them on a coordinate plane. Here's PBA #4.

### Algebra 1 PARCC question: quadratic zeros

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It's possible to find the zeros of a quadratic function (a parabola) by factoring it, provided there are real zeros for the function.

### Algebra 1 PARCC question: linear functions

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How do you spot a "linear function" when given a table of values, a graph, a word problem, or an equation?