STAAR - A.3B & A.3C

• 14 ft/yr

• 3 ft/yr

• 7 ft/yr

• 10 ft/yr

What is the rate of change of y with respect to x for this function?

• $-\frac{9}{2}$

• $\frac{2}{9}$

• $-\frac{2}{9}$

• $\frac{9}{2}$

• 200

• $\frac{1}{200}$

• 400

• $\frac{1}{400}$

 $y=3.75+1.5\left(x-1\right)$  

The function above can be used to dermine the cost in dollars for a taxi ride of x miles. What is the rate of change of the cost in dollars with respect to the number of miles?

• $1.50 per mile

• $3.75 per mile

• $4.25 per mile

• $5.25 per mile

• $100 per deposit

• $50 per deposit

• $0.50 per deposit

• $2 per deposit

Which graph best represents -5y = -6x + 15?

• A

• B

• C

• D

The graph of linear function k passes through the points (-7,0) and (1,8). Which statement must be true?

Hint: Use stat edit to get the equation!

• The slope of the graph is $-\frac{4}{3}$

• The graph of k passes through the point (-1,-8)

• The zero of k is 7

• The x-intercept of the graph of k is -7

Which statement best describes the y-intercept of the graph?

• The water level increased by 0.25 ft per day

• The maximum water level was 19.5 ft

• The initial water level was 16 ft

• The water level was measured for 14 days