What is the slope-intercept form of the function described by this table?
1 answer:
As the name suggests, the slope-intercept form requires you to find the slope and the intercept. Slope-intercept form is y=mx+b
You can find slope by rise over run, or get two points and plug them into the following formula:
. However, if you see that x values increase by one, you can just find the difference between two y values. In this case, the difference is +5 each time, therefore, the slope or <em>m </em>is 5
The intercept is where x=0. Since we know that (1,2) is a point, we subtract 5 from 2 to get the intercept. Therefore, the intercept is -3
Therefore, the formula is y=5x-3
You can find slope by rise over run, or get two points and plug them into the following formula:
The intercept is where x=0. Since we know that (1,2) is a point, we subtract 5 from 2 to get the intercept. Therefore, the intercept is -3
Therefore, the formula is y=5x-3
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Therefore, Kevin is 24 years old now.