Question 316872
1. Through: (1,2) Slope; 7
Y=mX+b where m=slope & b=Y intercept.
2=7*1+b
2=7+b
b=2-7
b=-5 ans. for the Y intercept.
Y=7x-5
To find the X intercept set Y=0.
0=7x-5
7x=5
X=5/7 ans. for the X intercept.
{{{ graph( 300, 200, -6, 5, -10, 10, 7x -5) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 7x -5)