The estimated total cost, y, of a child’s toy is partially based on the number of batteries used, x. The cost of one battery is $0.75. The toy itself costs $12. Which equation represents the situation?
Four students graphed one linear function each.RhettCameronEllisBradenWhich student graphed a linear function with a y-intercept at –4?

What is the slope and the y-intercept of the line on the graph below?



What is the slope, m, and y-intercept for the line that is plotted on the grid below?



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