(algebra 1) how do I figure out the y-intercept using this table? I already have the slope which is 5 but I'm not really sure how to get the y-intercept
Table posted in the replies

Question

gelphielvr · Answer

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SunFlower01 · Answer

do you know what desmos is ?

gelphielvr · Answer

@sunflower01 wrote:

do you know what desmos is ?

heard of it but I have no clue what it is.

SunFlower01 · Answer

@sunflower01 wrote:

do you know what desmos is ?

well if u dont it helps with all dif math equations mostly ones that can be graphed

SunFlower01 · Answer

@gelphielvr wrote:

@sunflower01 wrote:

do you know what desmos is ?

heard of it but I have no clue what it is.

look it up and use the table by clicking "+" on the upper left corner

ThanosQC · Answer

To solve this equation, first use slope formula ($$\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }$$) to find the slope. $$\frac{ 65-25 }{ 10-2 } = \frac{ 40 }{ 8 } = 5 = m$$. Next, use point slope form ($$y-y _{1}=m(x-x _{1})$$ to find "b". $$y _{1}$$ and $$x _{1}$$ can be any coordinate on the table; y-25 = 5(x-2). Next, simply isolate and you have your equation in point-slope form:

y-25 = 5(x-2)
y-25 + 25 = 5x - 10 + 25
y = 5x + 15

b = 15, so the y-intercept of this table would be 15.

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