Introduction to Functions Pre-Test
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11
49:19
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5
What is the domain of the function on the graph?
5
all real numbers
4 +
3+
Call real numbers greater than or equal to 0
all real numbers greater than or equal to -2
Call real numbers greater than or equal to -3
2 +
1
1
–5 4 3 2 11
1 2 3 4 5
X
-2 +
-3 +
1-4
-5
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Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315

What is not true about kl and mn? what is mn? (show )