•Plz help it’s due tomorrow, the work is abt equations•

Question #15:

Slope-intercept form:  y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

You know:

m = 4

b = -3      So substitute/plug it into the equation

y = mx + b

y = (4)x + (-3)

y = 4x - 3          Your answer is C

Question #16:

Point-slope form:  y - y₁ = m(x - x₁)

(m is the slope, (x₁ , y₁) is the point you are given)

You know:

m = 2

(x₁ , y₁) = (3, 1)         So substitute/plug it into the equation

y - y₁ = m(x - x₁)

y - (1) = 2(x - (3))

y - 1 = 2(x - 3)           Your answer is F

Questions #17:

Yoga lessons cost $5 per lesson if Kylie enrolls in the health club for a fee of $120 per year. Which equation represents the yearly cost C of l yoga lessons?

C = the total cost of a year

l = the number of yoga lessons

C = 5l + 120

(the total cost of a year = $5 per lesson(l) plus a fee of $120 per year, so you pay a fee of $120 once a year)

Your answer is B

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol