Question

#2
Determine whether the graph of y = −2x2 − 3x + 10 opens up or down and whether it has a maximum or minimum point.

Down and Maximum

Down and Minimum

Up and Maximum

Up and Minimum

Answer 1

This is from the family of functions, y=x^2 which are parabolas that open vertically.
If the x^2 term is negative, then it's a frowny face (opens down).
From that shape, what can you say about whether it has a max or min?

Answer 2

up and max?

Answer 3

nope, the opposite. down and max

Answer 4

also this 1 please

Identify which equation is a quadratic equation.

y = −5x − 3

y = −4x(x + 10) + 34

y + x2 = (x − 4)(x + 3)

y − 2 = (x − 2)(x2 + 1)

Answer 5

Simplify them and see which one has a variable with and exponent of 2.