Chapter 9: Q16. (page 593)
Solve each equation by graphing. If integral roots cannot be found, estimate the roots to the nearest tenth.
Short Answer
The roots of the equation are and .
Chapter 9: Q16. (page 593)
Solve each equation by graphing. If integral roots cannot be found, estimate the roots to the nearest tenth.
The roots of the equation are and .
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Get started for freeMULTIPLE REPRESENTATIONS in this problem, you will investigate solving quadratic equations using tables.
a. ALGEBRAIC Determine the related function for each equation. Copy and complete the table below.
b. GRAPHICAL Graph each related function with a graphing calculator.
c. ANALYTICAL use the table feature on your calculator to determine the zeros of each related function. Record the zeros in the table above. Also, record the values of the function one unit less than and one unit more than each zero.
d. VERBAL Compare the signs of the function values for x values just before and just after a zero. What happens to the sign of the function value before and after a zero?
FIND THE ERROR Chase and Jade are finding the axis of symmetry of a parabola. Is either of them, correct? Explain your reasoning.
Write the equation for the nth term of each geometric sequence.
Consider
Write the equation of the axis of symmetry.
Determine whether each trinomial is a perfect square trinomial. Write yes or no. If so, factor it.
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