x-intercept- the exact point where the function crosses the x- axis
y-intercept- the exact point where the function crosses the y- axis
increasing- the 2 points from when the graph starts to increase
decreasing- the 2 points from when the graph starts to decrease
maximum- the vertex
minimum- the vertex
Parabola- when a quadratic equation is graphed (u-shaped)
5.2
The graphs are done basically the same way but look different in the sense that quadratic functions make parabolas while linear functions make v-shapes.
In quadratic functions there must be an exponent of 2 as opposed to linear functions.
5.5
The tennis ball makes the shape of a parabola when traveling through the air.
h(1)=27, which means that at 1 second the height (h) of the tennis ball was 27 ft.
y-intercept of h(t)= 3, which represents the initial height the ball was hit at.
vertex= (25,28), which is the maximum height of the tennis ball. x= seconds while the y= height.
x intercept= 2.6, which means at 2.6 seconds the tennis ball will hit the ground.
5.2
5.5