From the equation y= 3x+18, what is the value of the x-intercept

standard form is -3x + y = 18

x-intercept

-3x + 0 = 18

-3x = 18

x = -6

(-6, 0) is the x-intercept

Step-by-step explanation:

The x-intercept is the x-value when y = 0 ---> (x, 0) or the point where the line crosses through the x-axis.

To find the x-intercept, you can substitute/plug in 0 into "y" in the equation:

y = 3x + 18     Plug in 0 into "y" since y = 0, then isolate/get the variable "x" by itself

0 = 3x + 18       Now subtract 18 on both sides

-18 = 3x         Divide 3 on both sides to get "x" by itself

-6 = x              -6 is the x-intercept

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.