Answer:
m = - 7 and b = 59
Explanation:
The equation of a line in slope- intercept form is
y = mx + b ( m is the slope and b the y- intercept )
Here m = - 7, thus
f(x) = - 7x + b
To find b substitute (7, 10) into the equation, that is
10 = - 49 + b ⇒ b = 10 + 49 = 59
f(x) = - 7x + 59 ← equation of line