It would be 2 since that would give you the trio mail if expanded
F(x) = x
stretch by 3:
f(x) = 3x
flip over x-axis
g(x) = -3x
answer is C. g(x) = -3x
Answer:
A. 81
Step-by-step explanation:
F(x)=
if x=4, then F(4) = = 3×3×3×3=81
Part A:
Express the given number of hours and velocities of the cyclist as ordered pairs. The time (number of hours) can be our abscissa (x-coordinate) and the velocities can be our ordinate (y-coordinate). The coordinates are therefore (2, 18) and (4, 4). The equation that can be formed in this is established through the two-point equation.
(y - y₁) = ((y₂ - y₁)/(x₂ - x₁))(x - x₁)
Substitute the known variables.
(y - 18) = ((4 - 18)/(4 - 2))(x - 2)
Simplifying the equation,
y - 18 = -7(x - 2)
y = -7x + 32
<em>ANSWER: y = -7x + 32
</em>Part B: This can be graph in the Cartesian plane and numbers 1 to 8 can be substituted to y and take note of the ordered pairs for each point. The slope of the line should be -7 and the y-intercept is 32.<em>
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<span>The set up is normally
t/A + t/B = 1 (as in 1 job)
</span><span>Here you are given t, the time worked together, and A, Alex's alone time...now we need to find B, Millie's alone time...so
4/6 + 4/B = 1
B turns out to be 12...which means
Alex did 2/3 the job and Millie did 1/3</span>