11: Investigation # INVESTIGATION 1
Term 1 2021
Capricorn South District
A quadratic equation has the standard form ax + bx +c= 0, where a, b and care constant and a
Solving quadratic equations involves following defined steps.
METHOD: SOLUTION OF QUADRATIC EQUATIONS
A.
Simplify the equation
B.
Write the equation in standard form
C.
Factorise the equation
D.
Apply the zero - product property (if a x b = 0, then
...)
.1
Write down the zero - product property for equations​

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.