Rewrite the equation 8x + 6x2 - 7= in standard form and identify a, b, and c. Select one:
a. a =5,b= 8.c = -7
b.a=6,6= 8,0 = 1
ca=5,b=8,0= 7
da= 8,b= 6.c = -7
40

a = 6

b = 8

c = -7

Step-by-step explanation:

In standard form, we have ;

y = ax^2 + bx + c

Here, we have;

6x^2 + 8x - 7

a is the coefficient of x^2 which is 6 in this case

b is the coefficient of x which is 8

c is the last number which is -7

So we have;

a = 6

b = 8

c = -7

gradient = 9

Step-by-step explanation:

The gradient of the tangent at x = a is the derivative

Differentiate using the power rule on each term

(a ) = na and ( constant ) = 0

y = 2x² + 5x - 3

= 2.2 + 5 - 0

    = 4x + 5

( x = 1 ) = 4(1) + 5 = 4 + 5 = 9 ← gradient of tangent