Page 775 - Algebra 1

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Evaluate x2 - 8x + 15 and its factors for x = -2.
OvenTemperature Theactualtemperature(t)ofJeannine’sovenvariesbynomore
than 9°F from the set temperature. Jeannine sets her oven to 350°F. Write an absolute-value inequality that models the possible actual temperatures inside the oven. What is the lowest possible temperature?
Multi-Step The length of a picture is 2 inches greater than its width. A 3-inch-wide border is added to the bottom of the picture for a scrapbook page.
a. Write expressions for the width and length of the
x + 2 inches
picture with the border.
x inches
3 inches
760
Saxon Algebra 1
b. The area of the picture with the border is 110 square inches. Find the length and width of the original photo.
Multi-Step Jasmine wants to plant tulips around the perimeter of her property. The property is the shape of a square. The area of the yard is 21,000 square feet and the area of the house is 1500 square feet.
a. Write a formula to find the length of the sides of the property.
b. Solve for x.
c. Jasmine changes her mind and decides to buy enough bulbs to plant them 6 inches apart along just one edge of the property. How many bulbs will she need if she starts at the first corner and goes to the second corner?
Justify Explain how to simplify _6 .
Subtract
_2 __√ 5-7 2x - x-7 .
x2 -49 x2 -6x-7
If f(x) = _1 x and g(x) = 3x, which function represents exponential growth and
3
which function represents exponential decay?