Answer:
E
Step-by-step explanation:
Given
y = 2x² - kx + 3
with a = 2, b = - k and c = 3
Since the curve touches the x- axis at one place then the roots are real and equal and the discriminant for this condition is
b² - 4ac = 0, that is
(- k)² - (4 × 2 × 3) = 0
k² - 24 = 0 ( add 24 to both sides )
k² = 24 ( take the square root of both sides )
k = ±
= ± 2
k = 2
or k = - 2
→ E
Answer:
the slope is equal to m or in this case 3. the y intercept is equal to b or 3/4
Step-by-step explanation:
Your answer is C, <span>y+8=3(x+1)</span>
-7x + 6 =27
subtract 6 from both sides
-7x =21
divide both sides by -7
x= -3