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In slope intercept form y=mx+b, the y-intercept is located at (0,b).

a. What equation results from substituting (0,b) for (x1,y1) in the point-slope form y-y1= m(x-x1)?

b. How are the slope-intercept and the point-slope forms related?

a . When (0,b) is substituted for (x1,y1) in the point-slope form y-y1=m(x-x1). the result is__
( Type an equation )
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Step-by-step explanation:

a. Substituting (0,b) into the point-slope form, we get y = mx + b. Plug in 0 to the x1 value and plug in b into the y1 value. Add b to both sides and you should get y = mx+b.

b. Slope-intercept shows how to get specific x or y values at a point if three of the four variables (y, m, x, or b) are known. Point slope form is used mainly when finding the slope from two distinct points. (Later, you'll learn it's importance in the definition of a derivative :).)

c. y = mx + b. Refer to a.

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