Page 711 - Algebra 1

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Factor 2x2y + 4xy - 7xyz - 14yz.
Multi-Step A plane left the airport and traveled west, with a tailwind, at a cruising speed of 230 miles per hour for 300 miles. After dropping passengers off, the plane traveled east at the same cruising speed, but into a headwind, for 220 miles before landing for fuel.
a. Justify Write an expression for the time going west and another expression for the time going east. Explain how you came up with these expressions.
b. Add the expressions and simplify.
c. What does the simplified expression represent?
Gardening Jasmine has a rectangular garden with an area of (x2 - 14x + 45) square feet and a length of (x - 5) feet. What is the width of her garden?
Multi-Step A bike rental company charges $8 for each bike rental plus $10 for each hour it is rented. A couple has budgeted $66 for both of them to rent bikes. They hope that the total cost is within $10 of their budget.
a. Write an absolute-value equation for the minimum and maximum number of
hours the couple can ride bikes.
b. What is the minimum and maximum number of hours the couple can ride bikes?
Write How do you find _4y - 5 as the difference of two rational expressions? 6
Can x2 + x + 1 be factored? Explain.
If a quadratic function has been vertically stretched, does that mean the parabola
is wider or narrower than the parent quadratic function, f(x) = x2?
_ _2 2 Multiply 90 • 6a b .
24a 25b
Do the side lengths 15, 36, and 39 form a Pythagorean triple?
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Saxon Algebra 1