HELP. Write the equation in slope-intercept form of the line that passes through the given point and has the given slope.
(4, -7); m = -1/4
a. y = -1/4x - 6
b. y = -1/4x - 8
c. y = -1/4x + 6
d. y = -1/ 4x + 8

a. y = -1/4x - 6

Step-by-step explanation:

slope intercept formula is y = mx + b with m being the slope, b being the y-intercept, and y and x being any point on the line

so plug in the slope and coordinates to solve for b

-7 = (-1/4) × 4 + b

solve for b by simplifying

b = -6

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

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