What are the vertex and axis of symmetry of the parabola shown in the diagram below?
1) vertex: (1.-4); axis of symmetry: x = 1
2) vertex: (1.-4); axis of symmetry: x = -4
3) vertex: (-4,1); axis of symmetry: x = 1
vertex: (-4,1); axis of symmetry: x = -4

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

answer:

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.