How many solutions does the system have? A graph titled pig race has time (seconds) on the x-axis and distance from start line (feet) on the y-axis. A line goes through (0, 4) and (4, 6) and another line goes through (0, 0) and (2, 1). zero one two infinite

zero

Step-by-step explanation:

since the lines don't intercept there isn't a solution

ps. I know this is right I just took the test

it shoild be o

step-by-step explanation:

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81