Answer:
(-2, 7)
Step-by-step explanation:
The equation of a line in point-slope forrm is expressed as;
y-y0 = m(x-x0)
y - 7 = 3 (x + 2)
Compare
-y0 = -7
Multiply through by -1
-(-y0) = -(-7)
y0 = 7
-x0 = 2
x0= -2
Hence the requires point is (x0,y0) =(-2, 7)
Answer:
,
Step-by-step explanation:
For the value of y-intercepts, y = 0, because at x-axis y is 0.
We know for Ax^2 + Bx + C = 0
x = ,
Answer:
20
Step-by-step explanation:
To solve this you have to make a system of equations.
Since the father and son's age sum up to 60, the first equation will be:
f + s = 60
Secondly, since the father's age is 5 times the age of the son 6 years ago the equation will be:
6 - (5s) = f
Now, you have to solve the first equation to let it equal to s
f + s = 60
f = 60 - s
Plug in
6 - 5s = 60 - s
+s +s
6 - 4s = 60
-6 -6
---------------------
-4s = 54
----- -----
-4 -4
s ≅ 14
14 + 6 = 20