How much more would the value of y be on the graph than its value in the table when x = 12?

The value increases by 70 for every two x steps, so 35 per x and starts with 0
at x=8 it is 280 or 8*35

so for x=12 the value would be 12*35=420
or by adding to the x=8 value 280+4*35=280+140=420

so the increase is 4*35=140

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.

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