Answer:
1) y = -0.5x+20
2)y = 0x+5
Explanation:
u would find a the slope which is y2-y1/x2-x1
this would give u an answer of M for the equation y=mx+b
to find b just plug in a point that is given so (10,15) the equation would look like y=mx+b --> 15=(slope)10+b
solve for "b" and this will be your y-intercept
the second point for the second line would be (30,5) u would plug this in as well.
