Answer:
y = (5/4)x - 4
Step-by-step explanation:
As we move from (0, -4) to (4, 1), x increases by 4 and y increases by 5.
Thus, the slope of the line segment connecting these two points is
m = rise / run = 5/4.
Subbing these knowns into the point-slope formula for the equation of a straight line, we get:
y - 1 = (5/4)(x - 4), or
y = (5/4)x - 5 + 1, or
y = (5/4)x - 4
Let's check this out. Determine whether or not (0, -4) satisfies the equation:
-4 = (5/4)(0) - 4
Yes, this is true; the equation is correct.
Step-by-step explanation: The great thing about the y-intercept is that it is a point, but it always has an x-coordinate of zero.
So when we are given two points, you can easily find the slope of the points by taking the second y coordinate minus the first y coordinate and dividing it by the second x coordinate minus the first x coordinate.
That value will give you your slope or your steepness of the line.
The y-intercept is easy since you're already given it so just add or subtract it from your slope to write the equation of the line.
Answer:
Step-by-step explanation:
The mean for brand A is higher than the mean for brand B
Answer:
2
Step-by-step explanation:
It's D
Because a sphere is round, it's a 3D circle.
Hope this helps!
