Which statements are true about the function y = x2 + 2x – 3? Choose the THREE statements that are correct.
А
The graph of the function opens up.
B
The graph of the function opens down.
C
The graph of the function has a vertex at (1,0).
D
The graph of the function has a vertex at (-1,-4).
E
The graph of the function has an axis of symmetry of x = 0.
F
The graph of the function has an axis of symmetry of x = -1.

number one is the correct answer

step-by-step explanation: dogs and cats are mentioned, no other animals

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

0.32

step-by-step explanation:

2.24/7