Range is the y values or the height
so we see its highest point is y=4
it's lowest is y=-1
so range is from 4 to -1
hmm, not listed
maybe we should assume that the ggraph keeps going down and right
so it goes from 4 to negative inifnty
so that is the 2nd option
Negative x positive = negative
Negative x negative = positive
-4 x 8 = -32
-4 x -1 = 4
-4 x -5 = 20
-4 x 9 = -36
Answer: |-32 4 20 -36|
Answer:
Step-by-step explanation:
-2x² + 12x + 32 = 0
discriminant = 12² - 4(-2)(32) = 400
positive discriminant means there are two distinct real roots
x = [-12 ± √(12² – 4(-2)·32)] / [2·(-2)]
= [-12 ± √400] / (-4)
= [-12 ± 20] /(-4)
= 8, -2
Use a Position time graph
