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6. Let j(x) = x^2 − 2x + 4. Evaluate the following.j(a) =j(3)=j(x^2) =j(x + 3) = j(x + h) =?
A.) j(a) = a^2 - 2a + 4
B.) j(3) = (3)^2 - 2(3) + 4 = 9 - 6 + 4 = 7
C.) j(x^2) = (x^2)^2 - 2(x^2) + 4 = x^4 - 2x^3 + 4
D.) j(x+3) = (x + 3)^2 - 2(x + 3) + 4 = x^2 +6x + 9 - 2x - 6 + 4 = x^2 + 4x + 7
E.) j(x+h) = (x + h)^2 - 2(x + h) + 4 = x^2 + 2hx + h^2 - 2x - 2h + 4
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to divide
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How do you evaluate 3m-2x?
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Replace 7 for x and evaluate the expression 9x - 2x?
X = 7 9x - 2x = 49
What does evaluate 2x for each value of x mean?
to divide
Substitute 6 for x and evaluate the expression below5x plus 2x?
X = 6 5x + 2x = 42
Plato web answer key?
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