Would be greatly appreciated : ) what is the graph of the line if m and b are both 0? can you write the equation of a vertical line using slope-intercept form? margo used the equation y = −4x − 1 to graph a line. she graphed the point (−1,0). does (−1,0) lie on the line? what mistake did margo make?

if the slope "m" and the y-intercept "b" are both 0, then the slope-intercept form of it could just be written as

y = 0x + 0

which of course is just y = 0.

now, is (-1,0) on the line y = -4x -1?

well, to find the other coordinate, we can simply plug in the known coordinate value, say hmmm if we set x = -1, do we get 0 for "y"?  let's check

y = -4(-1) - 1

y = 3 for the point (-1, 3)

whatever happened to Margo?   well, we gather she used x = 0, y = -4(0) - 1, y = -1, and that gives the point (0, -1)  NOT (-1, 0).

so her mistake is, she used the y-coordinate value of 0 and used it on the "x" value to get the -1.l

however (-1, 0) is not on the line, but (0, -1) is.

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

2nd one in the first row is correct