I dont know. how to do these. The teacher doesn't necessarily teach us how to do it.

I think that’s graphing quadratic functions.

Equation for quadratic function is
y = a (x-h)^2 + k

To get:

X-intercepts: any point that touches the x-axis

Axis of symmetry: x = opposite of h

Vertex: (opposite of h,k)

Y-intercept: any point that touches the y-axis

Extra Point: i think you can get this by finding a point from your graph

Domain: (-infinity,infinity)
Range: [min,infinity) or (-infinity,max)

If the a is fraction, the graph is compress

If the concave is down, the value is negative. If the concave is up, the value is positive.

Concave up is absolute minimum. Concave down is absolute max.

Positive a means concave up. Negative a means concave down

Is there more to the question?

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.