set y = kx+b
for (4,-2): -2=4k+b (function 1)
for (-1,8): 8=-k+b (function 2)
Use function 2 subtract function 1:
10=-5k
k=-2
SO the slope is -2.
Answer:
The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. The axis of symmetry always passes through the vertex of the parabola.
Step-by-step explanation:
I took algebra last year.
divide both sides by 7 to get x alone
84/7 = 12
B.12
28 is the least amount he will have to walk