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anonymous
 4 years ago
If the slope of the line that passes through the points (a,0) and (1,2) is 1/2, what is the value of a?
anonymous
 4 years ago
If the slope of the line that passes through the points (a,0) and (1,2) is 1/2, what is the value of a?

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0draw a picture of a line through 1,2 with slope 1/2...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0(y2) = (1/2)*(x1) also works

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0(let y = 0 and solve that equation for x)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Just use the formula to figure out slope: rise over run It's change in y over change in x \[(y2y1)/(x2x1)=(20)/(1a)=2/(1a)\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[2/(1a)=1/2\] \[1a=1/4\] \[a=3/4\] a=3/4
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