How do you find the slope and intercept to graph #y=3x+4#?

2 Answers
jk.13
Apr 1, 2018

#b=4, m=3#

Explanation:

The intercept and slope are already given. This equation is in the form #y=mx+b#, where #b# is the y-intercept (0,4) and #m# is the slope, #3#.

AegiZz
Apr 1, 2018

Slope: #3#
Y-Intercept: #(4,0)#
X-Intercept: #(0,-4/3)#

Explanation:

You should be armed with the knowledge what the slope-intercept form is. It is #y=mx+b#. #m# stands for the slope, and #b# stands for the y-intercept. So, seeing from the equation, #y=3x+4#, 3 is the slope and #(4,0)# is the y-intercept. To find the x-intercept, you have to plug 0 in for #y# and just solve for #x#. Then, you should have #0=3x+4#. You subtract #4# to isolate the variable. Lastly, you divide #3# to get #-4/3#. The x-intercept is #(0,-4/3)#

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