Explanation:
Slope / gradient of a line is obtained by making an equation in the form of:
y=mx+c
where ' m ' gives the slope/gradient of the line and ' c ' gives y-intercept.
2x+y=17
y = −2x+17
Here comparing this with y=mx+c gives:
m = -2 (slope/gradient) and
c = 17 (y-intercept)
So slope / gradient of line :
m=−2