Answer:
see explanation
Explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
For
y = 8 - 3x ← in slope- intercept form
with m = - 3 and c = 8
Kanika made the error of mixing up these values
If she had expressed the equation as y = - 3x + 8 she may have got the correct values for m and c.
(a)
y = 5x + 8 → m = 5 and c = 8
(b)
y = - x + 2 → m = - 1 and c = 2
(c)
y = 3x → m = 3 and c = 0
(d)
y = 7 - x → m = - 1 and c = 7 ( think y = - x + 7 )
(e)
y = x + 6 → m = 1 and c = 6
(f)
y = 9 - 2x → m = - 2 and c = 9 ( think y = - 2x + 9 )
(g)
y = 4 + x → m = 1 and c = 4 ( think y = x + 4 )
(h)
y = - 3x - 7 → m = - 3 and c = - 7