# Chapter 8 - Polynomials and Factoring - 8-1 Adding and Subtracting Polynomials - Standardized Test Prep: 54

F. y=5x+10

#### Work Step by Step

The slope of the line is calculated by looking at the graph. Slope = $\frac{rise}{run}$ so since the line goes up 5 units(rise) and to the right one unit(run) the slope is 5. m=5 The y-intercept is where the line crosses the y axis and in this the y-intercept is (0,10). Thus b=10. An equation for a line is y=mx+b Given that m=5 and b=10 we substitute that into the original equation. y=5x+10

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