HURRY WILL MARK BRAINLIEST
WHICH OF THE FOLLOWING PARABOLAS OPENS UPWARD AND APPEARS NARROWER THAN Y= -3X^2+2X-1

A.

Step-by-step explanation:

We can eliminate answer choices by looking at several factors. If the parabola opens upward, there cannot be a negative number as 'a'. Recall that standard form of a parabola is y= ax² + bx + c.

Therefore, any choice that has a negative number as 'a' opens downward. This leaves answers A and C.

Next, for the parabola to appear narrower, it must have some kind of vertical stretch or horizontal compression. 'A' is the only choice that has a vertical stretch transformation done to the parabola. The correct answer is A.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.