STAAR Alg 1 #41-54

Linear function t has an x-intercept of -1 and a y-intercept of 5. Which graph best represents t?

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The value of y is directly proportional to the value of x. When x = 3.5, the value of y is 14. What is the value of y when x = 28?

A quadratic function is graphed on the grid.

Which answer choice best represents the domain and range of the function?

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The table represents some points on the graph of linear function f.

Which function represents f?

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The scatterplot and table show the weekly profit in dollars earned from the sale of pastries at seven different prices. The data can be modeled by a quadratic function.

Which function best models the data?

A part of exponential function f is graphed on the grid.

Which inequality best represents the domain of the part shown?

• 8.5

• -17

• 43

• -12.5