Write the slope-intercept equation for the line that passes through (-1, -4) and (4, 11). Please show all of your work.

Question

anonymous · Answer

$$y_{1} - y _{2} = m(x _{1}-x _{2})$$

so
$$-15 = m(-5)$$
$$m = -15/-5$$
$$m = 3$$

Then sub in m with unknowns:
$$(-4) -y = 3((-1)-x)$$
therefore:
$$y=3x+1$$

Q.E.D

anonymous · Answer

very sorry, i mean:
$$y = 3x-1$$

anonymous · Answer

thanx

anonymous · Answer

ooops sorry m=3,,

anonymous · Answer

to find the slope, use y2-y1=m(x2-x1)
                                 -4-11=m(-1-4) 
                                       -15=m(-5)
                                        m=(-15)/(-5)=3 
always use the slope formula y=mx + b here it passes through point (-1,-4)=(x,y) therefore use the formula y-y1=m(x-x1) y-(-4)=(3)(x-(-1)) 
y+4 =(3)(x+1)
 y+4=(3)x +(1/3) y=(3x)+(3)-4 
y=3x-1 ans