Answer:
<h2>(x,y)=(6,-2)</h2>
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
- linear equation
- system of linear equation
- solving system of linear equation by graphing
- PEMDAS
<h3>given:</h3>
<h3>tips and formulas:</h3>
- to solve system of linear equation by graphing we have to simplify the linear equations to slope-intercept form
- slope intercept form:y=mx+b
<h3>let's solve:</h3>
let's simplify first linear equation to slope -intercept form
x+y=4
y=-x+4
table for this equation
<h3>see the first attachment picture</h3>
let's simplify first linear equation to slope -intercept form
table for this equation
<h3>see the second attached picture</h3>
solutions by graphing the system of linear equation
<h3>see the last attached picture</h3>
note: the red line is for first equation as well as the green line is for second equation and the black dot is the coordinates of the solutions of x and y
Answer:
Infinate solutions
Step-by-step explanation:
You’d use elimination
so you’d want to get either the x values to be the same or the y values so in this case we can multiply the top equation (4x + 6y=7) by 3 and then subtract the two equations so, 3(4x+6y=7) = 12x + 18y = 21 which is the same as the other equation meaning If you subtract the two you get 0=0 which leaves you with infinite solutions.
Answer:
y=(3/2)x + 1
Step-by-step explanation:
use formula y=mx+b
M is slope
B is y intercept
use point (2,4) for Y2 and X2, and point (0,1) for Y1 and X2 to find the slope.
(Y2(4) - Y1(1))/ (X2(2) - X1(0)) =
(4-1)/(2-0)= 3/2 for slope=M
y intercept is just the point found on the y axis (0,1) so it's just 1. B=1
so then plug in the numbers for the variables.
y=(3/2)x + 1