The answer is nine because eighteen subtract nine is nine
26.4 because .42 you have to leave the 4 the same since the 2 is not greater than 5.
f(x) has vertex = (- 1, - 5 ) and is a minimum
g(x) has vertex = (2, 3 ) and is a maximum
the equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
f(x) = (x + 1)² - 5 is in this form with vertex = (- 1, - 5 ) and minimum
to determine if maximum/ minimum
• if a > 0 then minimum
• if a < 0 then maximum
g(x) = - (x - 2)² + 3 is also in vertex form with a < 0
vertex = (2, 3 ) and is a maximum
It would be 16 since when you replace the k for the 4 it is 4^2 and 4 multiplied by itself (squared)=16. Hope this helps!
