-5
Chat with our AI personalities
2x-y=7
2x=7+y
2x-7=y
y=2x-7
This is also the equation of a line where -7 is the y-intercept and 2 is the slope of the line.
2xy substitute 3 for y and 5 for x 2(5)(3) = 30
That equals 2xy + 3y which factors to y(2x + 3)
y=x/7 y=(1/7) x It is a direct variation since it is of the form y=kx, where k=1/7 , a constant
When an equation is in the form y = mx + b, it is known as slope-y-intercept form. Here, m is the slope and b is the y intercept. So, the slope in the equation y = -2x + 7 is -2.
15