Find an equation in slope-intercept form of the line that has slope –2 and passes through point a (1,9)

Step-by-step explanation:

y - 9 = -2(x - 1)

y - 9 = -2x + 2

y = -2x + 11

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629