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Numbers and Operations Videos 64 videos

SAT Math 3.2 Numbers and Operations
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SAT Math 3.2 Numbers and Operations

SAT Math 1.4 Numbers and Operations
211 Views

SAT Math 1.4 Numbers and Operations. Solve the equation.

SAT Math 1.1 Numbers and Operations
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SAT Math 1.1 Numbers and Operations. How many combinations of beverage and cereal can be made?

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SAT Math: Finding the Vertex of a Parabola from Information in a Word Problem 5 Views


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Description:

f(x) – 83 = 3x2 – 30x. The graph of f(x) models a mountain pass, which is the region between two peaks. The function measures the height in feet (hundreds), and f(x) = 0 represents sea level. The x-values represent the distance, also in hundreds of feet, from cabins in which hikers can stay. If f(c) represents the lowest point of the mountain pass, what is the value of c?


Transcript

00:00

Yeah My state is there and fx is three times

02:04

twenty eight times squared plus eight Interesting So the equation

02:07

is now in vertex form this thing The whole point

02:10

of this boondoggle is to find the vertex which is

02:12

just a tsh k right and here it's five and

02:16

eight and we want to be sure we didn't come

02:17

all this way to mess things up with finish line

02:20

So we got to go back the problem and see

02:21

what we're supposed to find in the first place We

02:24

don't want the vertex or the height at the minimum

02:26

of half of season eight we want the vertex is

02:29

x value So forget that eat There is just five

02:33

That's the answer It's about

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