Question

Write this equation in slope-intercept form
y - 2.4 = 44(x-5)
a. y = 2.4x + 32
b. y = 5x + 32
c. y = 2.4x - 100.6
d. y = 44x - 217.6

Answer 1

which answer did u get?

Answer 2

first i, pick two points on the line--for example, (2, 1) and (4, 0) . Use these points to calculate the slope: m = = = - .
Next, find the y -intercept: (0, 2) . Thus, b = 2 .
Therefore, the equation for this line is y = - x + 2 .
Check using the point (4, 0) : 0 = - (4) + 2 yes ?

Answer 3

y = mx + b

y - 2.4 = 44(x - 5)
y - 2.4 = 44x - 220
y -2.4 + 2.4 = 44x - 220 + 2.4
y = 44x + (- 217.6)
y = 44x - 217.6 <---answer D.

Answer 4

y = mx + b

y - 2.4 = 44(x - 5)
y - 2.4 = 44x - 220
y = 44x - 217.6

u didnt need to do the extra work :)