What is the y = 3x + 2?
2007-01-24 01:35:35 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
That is a linear equation written in slope-intercept form.
The slope is the coefficient of x and the constant is the y-intercept. Using this information the y-intercept would be the 3.
If you need the x-intercept, you will need to let y = 0 and solve the equation for x.
0 = 3x +2
x = - 2 / 3
Is that what you were asking????
2007-01-24 01:41:32 · answer #1 · answered by Ray 5 · 0⤊ 0⤋
If such an equation is plotted on a graph with X and Y coordinates it will form a straight (linear) line. Plug in two or three values for x and solve each for y and place the results on the graph. The line will cross (intercept) both the X and Y axis. As a short cut, plug in 0 for x and solve for y and that will be the point (intercept) of the line on Y. Plug in 0 for y and solve for x to get the point (intercept) where the line crosses the X axis.
2007-01-24 09:43:16 · answer #2 · answered by Kes 7 · 0⤊ 0⤋
to find both x and y intercept
put equation in the standard form
x / a + y / b =1
where a is x intercept and b is y intercept
in order to get that
y-3x=2
y / 2 - 3x / 2 = 1
y / 2 + x/ (-2/3) =1
there fore the answer is
y intercept is 2
x intercept is -2/3
2007-01-24 09:53:40 · answer #3 · answered by Thava 1 · 0⤊ 0⤋
that is in y-intercept form of y = mx + b
b represents the y-intercept, in this case, 2
m represents the slopw, 3
to get the x-intercept, set y=0 and solve for x
2007-01-24 09:38:58 · answer #4 · answered by Anonymous · 0⤊ 0⤋