The function is y=f(x)=-2x-3
the graph of this function are all pairs (x, y)=(x, f(x))=(x, -2x-3)
the y-intercept of a graph of a function, is the point where the graph cuts the y-axis, which happens at x=0.
at x=0, f(x)=f(0)=-2*0-3=-3
the x-intercept(s) of the graph, are the point(s) where the graph intersects the x-axis. At those points, the y-coordinate is 0.
so the x-intercept(s) are points of the form (x, 0)
now,
(x, 0)=(x, -2x-3)
0=-2x-3
2x=-3
x=-3/2
Answer:
x-intercept: (-3/2, 0)
y-intercept: (0, )
Nancy: 5 Stan: 10
5 is 5 years
younger then Stan
And 5 is twice as
young as 10
That’s would be 12 times 4 2/3 so the answer is 56 seconds
