Precalculus Sections 1.1-1.3 Review.

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Presentation transcript:

Precalculus Sections 1.1-1.3 Review

Is the graph pictured below a function?

Find the equation for the line through the points (-2,5) and (3,2).

Find the equation for the vertical line through the point (-5,-1).

Write an equation for the line perpendicular to 3𝑥−6𝑦=5 that passes through the point 2,−8 .

Biologists have observed that the chirping rate of crickets of a certain species is related to temperature, and the relationship appears to be very nearly linear. A cricket produces 120 chirps per minute at 70℉ and 168 chirps per minute at 80℉. Find the linear equation that gives temperature t in terms of the number of chirps n.

For the function f given by find 𝑓 −2 .

Give the domain for the function

Give the domain for the following function: 𝑓 𝑥 = 7𝑥+2 3𝑥−8

Give the domain of the following function: 𝑔 𝑥 = 2𝑥−1

Evaluate the difference quotient 𝑓 𝑥+ℎ −𝑓 𝑥 ℎ for the function 𝑓 𝑥 =5 𝑥 2 −4𝑥+1.

Find the maximum and the minimum.

Find the intervals of increase and decrease.

Find the domain and range of the given graph:

Find the domain and range of the given graph.

Find the minimum for the function 𝑓 𝑥 =5 𝑥 2 +8𝑥−2