For questions 9 - 10, answer the questions about vertex form.
9. what are the coordinates of the vertex of the parabola described by the equation
below?
y = -2(x + 7)2 + 22
10. complete the square to rewrite y = x2 - 8x + 15 in vertex form. then state
whether the vertex is a maximum or a minimum and give its coordinates.

i need more information to answer

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

step-by-step explanation:

this is not a question

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.