Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar(s). line m has no y-intercept, and its x-intercept is (3, 0). line n has no x-intercept, and its y-intercept is (0, -4). the equation of line m is 3 , and the equation of line n is -4 .

Part A) The equation of the line m is

Part B) The equation of the line n is

Step-by-step explanation:

Part A) Line m has no y-intercept, and its x-intercept is (3, 0)

we know that

If a line has no y-intercept , then is a vertical line (parallel to the y-axis)

the equation of the line m is equal to the x-coordinate of the x-intercept

so

Part B) Line n has no x-intercept, and its y-intercept is (0, -4)

we know that

If a line has no x-intercept , then is a horizontal line (parallel to the x-axis)

the equation of the line n is equal to the y-coordinate of the y-intercept

so

15.5

step-by-step explanation:

5

∑

n = 1

substitute n = 1, 2, 3, 4, 5 and sum the terms

= + + + 2² + 2³

= 0.5 + 1 + 2 + 4 + 8

= 15.5